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R. Michael  Bagby
  • Toronto, Ontario, Canada
Recently, the Toronto Structured Interview for Alexithymia (TSIA) was developed to supplement the self-assessment of alexithymia and/or offer a different method of measuring the alexithymia construct. The aim of this study was to evaluate... more
Recently, the Toronto Structured Interview for Alexithymia (TSIA) was developed to supplement the self-assessment of alexithymia and/or offer a different method of measuring the alexithymia construct. The aim of this study was to evaluate the psychometric properties of a German language translation of the TSIA in a psychiatric patient sample. Translation and back-translation were performed until a high agreement of cross-language equivalence was obtained between the German and the original English language version of the TSIA. The TSIA and the German language version of the 20-Item Toronto Alexithymia Scale were administered to 237 psychiatric patients at the departments of psychiatry and psychotherapy in Germany and Switzerland. Videotapes of some of the interviews were recorded for the assessment of interrater reliability. The German version of the TSIA and its 4 scales correlated significantly with the German version of the 20-Item Toronto Alexithymia Scale and its 3 factor scales, providing support for concurrent validity of the interview. Confirmatory factor analyses supported the hierarchical, 4-factor structure obtained with the original English version, with 4 lower-order factors nested within 2 higher-order latent factors. Acceptable levels of internal reliability and interrater reliability were also demonstrated. The TSIA is a valid and reliable measure for assessing alexithymia, at least in clinical samples. The TSIA, together with a self-report alexithymia scale, allow for a multimethod approach to assessing alexithymia.
BackgroundMonoamine oxidase A (MAOA) is an important enzyme that metabolizes monoamines such as serotonin, norepinephrine and dopamine in the brain. In prefrontal cortex, low MAOA binding is associated with aggression and high binding is... more
BackgroundMonoamine oxidase A (MAOA) is an important enzyme that metabolizes monoamines such as serotonin, norepinephrine and dopamine in the brain. In prefrontal cortex, low MAOA binding is associated with aggression and high binding is associated with major depressive disorder (MDD) and also risk for recurrence of depressive episodes. In rodent models, low MAOA levels are associated with increased aggression and fear conditioning, and decreased social and exploratory investigative behaviors. Our objective was to measure MAOA binding in prefrontal cortex and concurrently evaluate a broad range of validated personality traits. We hypothesized that prefrontal MAOA binding would correlate negatively with angry-hostility, a trait related to aggression/anger, and positively with traits intuitively related to adaptive investigative behavior.MethodParticipants were aged 19–49 years, healthy and non-smoking. MAOA binding was measured with [11C]harmine positron emission tomography (PET) in ...
Researchers are increasingly administering tests developed and validated in paper format via the Internet. Yet, the equivalence between paper and Internet concerning administration of tests is not typically demonstrated. We evaluated the... more
Researchers are increasingly administering tests developed and validated in paper format via the Internet. Yet, the equivalence between paper and Internet concerning administration of tests is not typically demonstrated. We evaluated the reliability, factorial and external validity, and measurement equivalency of the Internet version of the 20-item Toronto Alexithymia Scale (TAS-20; Bagby, Parker, & Taylor, 1994; Bagby, Taylor, & Parker, 1994; Lumley et al., 2007) vis-à-vis the paper version. Participants (N = 621) completed the TAS-20 either on the Internet or on paper. Reliability and item-to-scale homogeneity were evaluated for each format. We used confirmatory factor analyses (CFAs) to evaluate factorial validity and used CFA-based factorial invariance procedures to determine measurement equivalency. Alpha coefficients and mean interitem correlations (MICs) were adequate for the full-scale TAS-20 Internet and paper versions and the difficulty identifying feelings (DIF) and difficulty describing feelings (DDF) factor scale test scores; in both formats, alpha and MICs were poorer for externally oriented thinking (EOT) factor test scores compared to scores for the DIF and DDF. The fit of the 3-factor structure of the TAS-20 was adequate for both formats. Factorial invariance across formats was also demonstrated; mean scores for the total scale and each factor scale were not different across formats. Correlations with the domain and facet scales of the Revised NEO Personality Inventory (Costa & McCrae, 1992b) were mostly similar across formats. The Internet and paper versions of the TAS-20 are comparably reliable and valid. An Internet version of the TAS-20 expands opportunities to collect data and permits generalizing of results across studies using the different modes of administration.
Many jurisdictions across North America have revised their civil commitment laws. In general, these laws have specified more concretely those conditions under which an individual may be involuntarily hospitalized, with the legislative... more
Many jurisdictions across North America have revised their civil commitment laws. In general, these laws have specified more concretely those conditions under which an individual may be involuntarily hospitalized, with the legislative intent of reducing civil commitments. The present study analysed the effects of similar reform on admission rates to Ontario Public Mental Hospitals and Public Psychiatric Hospitals. Results indicate that despite a significant trend toward a decreasing rate of involuntary hospitalization prior to legislative revision, there was a subsequent trend toward an increasing rate of civil commitments in the years following change in law. These results raise serious questions about the ability of lawmakers to legislate the practices of mental health professionals.
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Many jurisdictions across North America have revised their statutes pertaining to the criteria for civil commitment with the legislative intent to either increase or decrease the use of involuntary hospitalization. The impact of these... more
Many jurisdictions across North America have revised their statutes pertaining to the criteria for civil commitment with the legislative intent to either increase or decrease the use of involuntary hospitalization. The impact of these revised statutes has been examined in many jurisdictions, but there has been no consensus regarding their effectiveness in changing the rates of involuntary admissions. The present article reviews the literature from a methodological perspective, comparing the differing analyses, results and interpretations. When the legislative revision has sought to expand medical prerogative, results indicate a sustained increase in civil commitments. When legislation has aimed at limiting medical discretion, there was an immediate decline in civil commitment rates, but a subsequent increase in the period following the initial post-reform declines. These results are discussed in terms of readmission trends, deinstitutionalization, and the possible reaction of mental health professionals who perceive legislation as an unnecessary constraint in the treatment of the mentally ill.
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The authors question the clinical status of factitious disorder with psychological symptoms as a mental disorder. In particular, they argue that unresolved issues regarding the motivational basis of this disorder and the lack of clearly... more
The authors question the clinical status of factitious disorder with psychological symptoms as a mental disorder. In particular, they argue that unresolved issues regarding the motivational basis of this disorder and the lack of clearly delineated inclusion, exclusion, and outcome criteria seriously compromise its diagnostic legitimacy. Two case reports are presented to illustrate these difficulties. Future studies should consider these empirical and conceptual difficulties in refining the diagnosis of factitious disorder with psychological symptoms for DSM-IV.
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Conflicting results have been reported in studies examining the relationships between alexithymia and the variables of age, gender, social class, and intelligence. Moreover, these results are of dubious validity and generalizability... more
Conflicting results have been reported in studies examining the relationships between alexithymia and the variables of age, gender, social class, and intelligence. Moreover, these results are of dubious validity and generalizability because many of the studies used psychometrically poor scales to measure the alexithymia construct. The present study reexamined the relationships between alexithymia and sociodemographic variables and intelligence in a sample of normal adults using the Toronto Alexithymia Scale (TAS), a recently developed self-report measure with evidence of reliability and validity. The results indicate that alexithymia, as measured by the TAS, is not associated with age, gender, educational level, socioeconomic status, and intelligence.
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SI88I8ry-The pilot study examined the relationships between the Toronto AJexithymia Scale (TAS), the scales of the EPQ. and self-report measures of somatic complaints. One hundred and ninety undergraduates completed the T AS, EPQ and two... more
SI88I8ry-The pilot study examined the relationships between the Toronto AJexithymia Scale (TAS), the scales of the EPQ. and self-report measures of somatic complaints. One hundred and ninety undergraduates completed the T AS, EPQ and two measures of somatic complaints. As expected, the T AS and EPQ Neuroticism scale correlated positively with each other and with somatic complaints; the Extraversion scale correlated negatively with the T AS. The Neuroticism scale was found to be highly correlated with the somatic complaint scales. Directions for future research relating personality variables and somatic complaints are suggested.
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The prevalence of alexithymia in a group of newly abstinent male substance abusers (N=44) was 50%. The alexithymic patients had significantly less ego strength and repressive defensive behavior and significantly higher levels of somatic... more
The prevalence of alexithymia in a group of newly
abstinent male substance abusers (N=44) was 50%.
The alexithymic patients had significantly less ego
strength and repressive defensive behavior and significantly higher levels of somatic complaints and general dysphoria.
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Alexithymia is a hypothetical personality construct that has been associated with a variety of medical and psychiatric disorders. This article reviews a program of research evaluating the validity of the construct using a... more
Alexithymia is a hypothetical personality construct that has been associated with a variety of medical and psychiatric disorders. This article reviews a program of research evaluating the validity of the construct using a measurement-based, construct validation approach. For this purpose the Toronto Alexithymia Scale (TAS) was developed. In a series of studies the TAS demonstrated internal consistency, good test-retest reliability, and a stable factor structure theoretically congruent with the alexithymia construct. In separate tests of construct validity, the TAS correlated in a theoretically meaningful fashion with measures of other constructs. Criterion validity was supported by a study in which the TAS was able to discriminate between behavioural medicine out-patients designated as alexithymic and those designated as nonalexithymic on the basis of objectively rated structured interviews. In a normal adult sample, TAS scores were not related to sociodemographic variables or intelligence. These results provide considerable empirical support for the validity of the alexithymia construct. In addition, the TAS appears to be a psychometrically sound measure of alexithymia that may prove useful in testing the construct with psychiatric and medical patient populations.
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A simulation design was used to test the validity of the SIRS as a structured interview for the assessment of malingering. A correctional sample (25 simulators and 26 controls) was compared to previous validation research (Rogers et al.,... more
A simulation design was used to test the validity of the SIRS as a structured interview for the assessment of malingering. A correctional sample (25 simulators and 26 controls) was compared to previous validation research (Rogers et al., 1989) which had employed clinical and community samples. Results indicated that six of the 13 SIRS scales, as well as overall item endorsement, differed consistently between honest and simulating malingering conditions across correctional, clinical, and community settings. In addition, the suggestion that sociopaths may be more effective malingerers was not supported by the SIRS data.
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Ultimate opinion testimony in insanity trials has met with strong moral condemnation with charges that mental health experts have cast off their mantle of expertise and ventured into an arena sanctioned only for law and philosophy... more
Ultimate opinion testimony in insanity trials has met with strong moral condemnation with charges that mental health experts have cast off their mantle of expertise and ventured into an arena sanctioned only for law and
philosophy (Bonnie, 1983; Morse, 1978, 1985; Rodriguez, LeWinn, &; Perlin, 1983). Ultimate opinions (i.e., those conclusions which address directly the defendant's sanity/insanity) are inveighed against for subversion of the legal process by "invading the province of the jury" (Arenella, 1982; Halleck, 1980; Shah, 1981). Based on an availability heuristic, "egregious" insanity cases are believed to exist where it is surmised that a docile jury followed uncritically an expert's opinions, apparently unmoved by the judge's admonitions and unswayed by opposing counsel's exhortations (for a more balanced view see Golding &; Roesch, 1988).
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SIR: Dr. Hoffman's suggestion -- based entirely on his impressions and experiences -- that factitious disorder patients selectively seek out general hospitals (in particular, emergency rooms of teaching hospitals) in the evening or on... more
SIR: Dr. Hoffman's suggestion -- based entirely on his impressions and experiences -- that factitious disorder patients selectively seek out general hospitals (in particular, emergency rooms of teaching hospitals) in the evening or on weekends is an interesting and empirically testable hypothesis. During our literature search, however, we were unable to locate any studies to support or negate this hypothesis. Nevertheless, we would certainly encourage Dr. Hoffman and other researchers to pursue the issue.
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During the past decade, the alexithymia construct has undergone theoretical refinements and empirical testings and has evolved into a potential new paradigm for understanding the influence of emotions and personality on physical illness... more
During the past decade, the alexithymia construct has undergone theoretical refinements and empirical testings and has evolved into a potential new paradigm for understanding the influence of emotions and personality on physical illness and health.
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Research evaluating the relationship of alexithymia to medical and psychiatric disorders has been compromised by the poor psychometric properties of the instruments that have been used to measure alexithymia. This study evaluated the... more
Research evaluating the relationship of alexithymia to medical and psychiatric disorders has been compromised by the poor psychometric properties of the instruments that have been used to measure alexithymia. This study evaluated the psychometric properties of a recently introduced measure of alexithymio-the revised Schalling-Sifneos Personality Scale (SSPS-R). While the factor structure of the SSPS-R was found to be reasonably congruent with the theoretical domains of the alexithymia construct, the scale lacked homo-geneity and internal reliability. These results are compared with the reliability and' validity of other available measures of alexithymia. Recommendations are offered for the improved assessment of alexithymia in future research studies. alexithymia construct, originally developed by Nemiah and Sifneos, 1.2 is generating increasing interest in the role of emotional processing in illness and health.~ Derived initially. from clinical observations made about patients with classical psychosomatic diseases who were not psychologically minded and who had difficulty describing their emotions, I the construct has since been extended and applied to patients with a variety of medical and psychiatric disorders , in particular somatization disorders,J-7 substance use disorders,4.5.8 and post-traumatic stress disorders.s.9.,o The four components' that jointly form the construct of alexithymia are as follows:
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Previous research showing moderate to high correlations between the Toronto Alexithymia Scale (TAS) and Beck Depression Inventory (BDI) has generated controversy as to whether alexithymia and depression are distinct or overlapping... more
Previous research showing moderate to high correlations between the Toronto Alexithymia Scale (TAS) and Beck Depression Inventory (BDI) has generated controversy as to whether alexithymia and depression are distinct or overlapping constructs. The present study addressed this controversy using the statistical method of factor analysis. In a sample of undergraduate university students. 8 correlation matrix comprising items from both the TAS and BDI yielded a four-factor solution with virtually no overlap of the significant factor loadings for the items from each scale. and with the factors corresponding closely with their respective construct. These results were replicated and cross-validated with a sample of psychiatric outpatients. The findings support the view that alexlthymia is a construct that is distinct and separate from depression.
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Psychiatrists are being asked more and more often by the courts to determine whether or not criminal defendants are fit to stand trial. However, the Criminal Code provides few statutory guidelines on what constitutes fitness to stand... more
Psychiatrists are being asked more and more often by the courts to determine whether or not criminal defendants are fit to stand trial. However, the Criminal Code provides few statutory guidelines on what constitutes fitness to stand trial.
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The utility of the M test (Beaber, Marston, Michelli, & Mills, 1985) as a screening measure for malingering was assessed using simulation-design ( subjects asked to fake mental illness) and natural group ( forensic cases suspected of... more
The utility of the M test (Beaber, Marston, Michelli, & Mills, 1985) as a screening measure for malingering was assessed using simulation-design ( subjects asked to fake mental illness) and natural group ( forensic cases suspected of malingering) approaches.
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The Toronto Alexithymia Scale (TAS) is a self-report measure of the alexithymia construct. In previous studies with college students, the TAS demonstrated excellent psychometric properties including a 4-factor structure theoretically... more
The Toronto Alexithymia Scale (TAS) is a self-report measure of the alexithymia construct. In previous studies with college students, the TAS demonstrated excellent psychometric properties including a 4-factor structure theoretically congruent with the alexithymia construct. The present study attempted to cross-validate the factor structure of the TAS with samples of normal adults, psychiatric outpatients and college students. Congruence coefficients comparing the similarity of the factor structures for these three samples indicated good congruence for all four factors. The results provide further support for the validity of both the TAS and the alexithymia construct. In addition, the results provide evidence of the applicability of the scale to normal adult and clinical samples.
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The Endler Multidimensional Anxiety Scales (EMAS) are derived from an interactional model of personality that proposes that anxiety is a function of the interaction of person and situation variables. The EMAS distinguish between state and... more
The Endler Multidimensional Anxiety Scales (EMAS) are derived from an interactional model of personality that proposes that anxiety is a function of the interaction of person and situation variables. The EMAS distinguish between state and trait anxiety and assume that both are multidimensional constructs. The EMAS were adminstered to 2,009 students in a neutral situation. Three factor analyses were performed to clarify the empirical relation between state and trait anxiety and the variables within the 2 domains. Results support the distinction between state and trait anxiety. Factor analysis of the state items provided support for the separate dimensions of cognitive and autonomic state anxiety. Factor analysis of the trait items provided support for trait anxiety multidimensionality. Four congruent factors were associated with increases in state anxiety in 4 general situations: Social Evaluation, Physical Danger, Ambiguous, and Daily Routines.
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Legislation in Canada and the United States that was intended to decrease the use of civil commitment has resulted in a paradoxical increase in involuntary hospital admissions. To elucidate the reasons for this increase, this study was... more
Legislation in Canada and the United States that was intended to decrease the use of civil commitment has resulted in a paradoxical increase in involuntary hospital admissions. To elucidate the reasons for this increase, this study was designed to assess the relative importance of various factors involved in the decision to commit a patient.
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Notes that many community mental health centers in North America have on their staff paraprofessionals (PPs) who are indigenous to the community. Sharing the same cultural background as the community, they can often bridge the wide... more
Notes that many community mental health centers in North America have on their staff paraprofessionals (PPs) who are indigenous to the community. Sharing the same cultural background as the community, they can often bridge the wide cultural barriers between the professional and the population served. Despite this, PPs have traditionally held a relatively subservient role in relation to their professional colleagues, with the more crucial decisions left to the professionals—specifically, the involuntary commitment of the potentially dangerous person. Because of their understanding of the community culture, PPs' involvement in civil commitment procedures would seem critical. Although medical-psychological training is adequate for assessing dispositional traits, the very nature of such training prohibits an emphasis on cultural–contextual variables. The use of indigenous PPs in the commitment process would reduce this methodological dilemma and would also attenuate the potential misuse of mental health facilities as agents of social control.
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Recently, the alexithymia construct has emerged as a heuristically useful personality construct in the explanation of the pathogenesis of a variety of physical illnesses. Research that has evaluated the alexithymia construct, however has... more
Recently, the alexithymia construct has emerged as a heuristically useful personality construct in the explanation of the pathogenesis of a variety of physical illnesses. Research that has evaluated the alexithymia construct, however has been conducted with little attention to the psychometric properties of the various scales constructed to measure it. The study investigated the underlying dimensions and factor structure stability of the MMPI alexithymia scale.
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Addressing methodological problems in the development of existing scales for measuring alexithymia, this study reports the development of a new self-report scale. The Toronto Alexithymia Scale (T AS) was devised with concern for... more
Addressing methodological problems in the development of existing scales for measuring alexithymia, this study reports the development of a new self-report scale. The Toronto Alexithymia Scale (T AS) was devised with concern for theoretical congruence with the alexithymia construct, independence of social desirability response bias, and internal consistency. Initially, 41 items were administered to 542 college students. Twenty-six items meeting preestablished psychometric guidelines were retained. Factor analysis yielded four interpretable factors, all consistent with the construct. The scale demonstrated adequate split-balfand test-retest reliability, and scores were not significantly associated with age, education, and socioeconomic status. These preliminary results suggest that the T AS may be used as a clinical screening device with psychiatric and general medical patient populations.
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Discusses the lack of a clear distinction between confidentiality and privileged communication for Canadian psychologists. Research from the field of experimental ethics provides a framework for determining whether L. Wigmore's (1940)... more
Discusses the lack of a clear distinction between confidentiality and privileged communication for Canadian psychologists. Research from the field of experimental ethics provides a framework for determining whether L. Wigmore's (1940) rules, which provide 4 prerequisites for the justification of a claim of privilege, are satisfied
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Though never empirically verified, it is the general consensus among social psychologists that cognitive dissonance is no longer an actively researched area. In contrast, attribution theory is currently regarded as continuing to have a... more
Though never empirically verified, it is the general consensus among social psychologists that cognitive dissonance is no longer an actively researched area. In contrast, attribution theory is currently regarded as continuing to have a major influence in social psychological research. In order to examine this widely held belief, Leon Festinger's Theory of Cognitive Dissonance and Fritz Heider's Psychology of Interpersonal Relations (1958) were used as source indicators for dissonance and attribution theory, respectively, and citations to these two targets were tabulated for the years 1958-1987 using the Science Citation Index and Social Science Citation Index. As expected, the rate of citation to dissonance theory has decreased substantially during the past 15 years, while citations to attribution theory have remained relatively steady. The pattern of differential citation rates is even more evident within subsets of general psychology journals and social psychology journals. The results are discussed in terms of intellectual, methodological, and theoretical differences between the two theories.
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This study examines the effectiveness of 3 validity scales from the Millon Clinical Multiaxial Inventory-lI (MCMI-II) to detect fake-good and fake-bad responding. The sample consisted of 150 college students and 75 psychiatric inpatients.... more
This study examines the effectiveness of 3 validity scales from the Millon Clinical Multiaxial Inventory-lI (MCMI-II) to detect fake-good and fake-bad responding. The sample consisted of 150 college students and 75 psychiatric inpatients. The students took the MCMI-II under 1 of 3 instructional sets: fake bad, fake good, and honest responding. Two separate discriminant-function analyses with cross-validation were performed. The overall rate of successful classification was 76.0% for the faking bad group versus inpatient group and 72.0% for the faking good group versus the honest group.
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This study investigated the effectiveness of the Millon Clinical Multiaxial Inventory (MCMI-II) Validity Index (VI) to detect random responding. Undergraduate students (n = 58) completed the MCMI-II under instructions to respond randomly... more
This study investigated the effectiveness of the Millon Clinical Multiaxial Inventory (MCMI-II) Validity Index (VI) to detect random responding. Undergraduate students (n = 58) completed the MCMI-II under instructions to respond randomly to the items. Scores on the VI from this sample were compared with VI scores from a sample of psychiatric inpatients (n = 129). Discriminant function analyses yielded excellent overall correct classification rates. However, the cutoff levels recommended by the test publishers produced a high rate of false positives. Alternative cutoff scores are provided, and the use of additional indexes using different detection strategies are suggested.
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This study investigated the effectiveness of two recently developed measures of psychopathology - the Basic Personality Inventory (BPI) and the Millon Clinical Multiaxial Inventory-II (MCMI-II) in detecting dissimulation (i.e., faking... more
This study investigated the effectiveness of two recently developed measures of psychopathology - the Basic
Personality Inventory (BPI) and the Millon Clinical Multiaxial Inventory-II (MCMI-II) in detecting dissimulation (i.e., faking good and faking bad). Both personality measures have developed special 'validity scales' to discern dissimulating responses. Ninety-one undergraduate students completed the two personality scales under one of three instructional sets: fake good, fake bad, and honest. In general, the results indicated that both scales were effective in distinguishing the groups from one another. The MCMI-II was better at detecting fake bad responding, while the BPI appeared to be more effective in detecting fake good responding. These differences in identifying fake good and fake bad response styles can be attributed to the method in which the scales were constructed.
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Researchers interested in the psychology-law interface in the United States have generated informative results in the study of prejudicial attitudes in juror perception of guilt and sentencing over the past three decades.
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The Toronto Alexithymia Scale (T AS) is a 26-item self-repon measure of alex-ithymia with good internal consistency and test-retest reliability, and a factor structure con-aruent with the alexithymia construct. This study assesses the... more
The Toronto Alexithymia Scale (T AS) is a 26-item self-repon measure of alex-ithymia with good internal consistency and test-retest reliability, and a factor structure con-aruent with the alexithymia construct. This study assesses the construct validity of the scale by examining its relationship with several personality and psychopathology measures. In a sample of 81 college students, the T AS correlated strongly and positively with a measure of hypochondriasis but negatively with measures of psychological mindedness and 'need for cognition'. There were low-magnitude correlations between the TAS and measures of self-depreciation, social introversion, persecutory ideation, and impulse expression, but no correlation with a measure of denial. These results indicate that the T AS is assessing adequately the theoretical domain relevant to its item and factor structure.
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Alexithymia refers to a specific disturbance in psychic functioning characterized by coefficient in the capacity to verbalize affect BOO to elaborate fantasies. It Is a difficult concept to operationalize, and no practical and... more
Alexithymia refers to a specific disturbance in psychic functioning characterized by coefficient in the capacity to verbalize affect BOO to elaborate fantasies. It Is a difficult concept to operationalize, and no practical and sufficiently reliable and valid instrument for measuring it has been developed. While the Schalling-Sifneos Personality Scale (SSPS) has demonstrated reliability, convergent and divergent validity, and a factor structure consistent with the  construct, it has not been subjected to item-analysis or correlated with measures of social desirability response bias and socioeconomic status. Nor has the internal consistency of the scale been determined. In the present study, two samples of undergraduate students (N-542) completed the SSPS, the Crowne-Meriowe Social Desirability Inventory, and the Erlshen Socioeconomic Index. It was found that the SSPS has minimal response set bias and is not unduly influenced by age, education, and socio-economic status. However, of the 20 items on the scale, only five items reflected adequate Item-total correlations. An internal coefficient. estimated by CrortIach's alpha. was also unacceptably low. Factor analysis (varimax rotation, principal factor extraction with iterations) revealed a three-factor solution but accounted for only 18.3% of the total variance. Eight of 20 items lid not load significantly on any of the three factors and there was little item loading correspondence between the two subject samples. These results indicate that the SSPS Is In need of substantial revision and, at least in its present form, can not be recommended for clinical or research purposes. ALEXITHYMlA' a term coined by Sifneos I (from the Greek: a = lack, lens = word, thymos = emotion), refers to a cognitive-affective disturbance that affects the way individuals experience and express their emotions. Specifically, the essential features of alexithymia are (a) difficulty in identifying feelings and in distinguishing between feelings and bodily sensations, (b) difficulty in describing feelings to other people, (c) impoverished fantasy life, and (d) a preference for focusing on external events rather than inner experiences. As evidenced by a rapidly expanding literature in the field (for recent reviews, see Lesser2.3 and Taylor4), the concept of alexithymia has captured the interest of considerable numbers of cli-nicians, theoreticians, and researchers in various countries of the world who have described the clinical characteristics with remarkable consistency. Despite this similarity in the clinical descriptions, alexithymia has proven to be a difficult concept to operationalize. The lack of reliable and valid measures has limited the interpretability and generalizability of the research in this field, prompting some to believe that there is little empirical support for the construct.
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In their excellent article on the competence to consent to treatment, under the subsection "Competence and Treatment" (I), Drs. Draper and Dawson cite a study on the effects of legislation revision on involuntary admission rates that my... more
In their excellent article on the competence to consent to
treatment, under the subsection "Competence and Treatment"
(I), Drs. Draper and Dawson cite a study on the effects of
legislation revision on involuntary admission rates that my
colleague and I published in 1987 (2). Unfortunately, the
rendering of the results of this study and the summary of their
, literature review are somewhat misleading.
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The reformulated model of learned helplessness has been evaluated largely with the Attributional Style Questionnaire (ASQ). However, based on evidence presented in the literature, we have argued that the ASQ measures not three... more
The reformulated model of learned helplessness has been evaluated largely with the Attributional Style Questionnaire (ASQ). However, based on evidence presented in the literature, we have argued that the ASQ measures not three attributional dimensions (i.e., internality, globality. and stability), but two outcome factors and several events factors. Two published subscale correlation matrices were factor analyzed. In addition, ASQ data from 537 high school and college students were correlated. A third subscale matrix and three item correlation matrices were derived from these data and the factor analyses. All factor matrices were compared to hypothesized matrices. Our predictions were confirmed. It is argued that there may be little cross-situational consistency in attributional style.
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The theoretical parameters of the 5-factor personality model, which underlie the item domain of the Revised NEO Personality Inventory (NEO-PI-R), were assessed by subjecting the 30 subscales that comprise this scale to confirmatory factor... more
The theoretical parameters of the 5-factor personality model, which underlie the item domain of the Revised NEO Personality Inventory (NEO-PI-R), were assessed by subjecting the 30 subscales that comprise this scale to confirmatory factor analysis (CFA). Results from the CFA with a normative sample of 1000 adults indicated poor fit between the obtained factor structure and the hypothesized dimensions corresponding to the 5-factor model.
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The impulsivity scale from the Personality Research Form (PRF), the control/impulsiveness scale from the Multidimensional Personality questionnaire (MPQ), and the restraint scale from the Guilford-Zimmerman Temperament Survey (GZTS) were... more
The impulsivity scale from the Personality Research Form (PRF), the control/impulsiveness scale from the Multidimensional Personality questionnaire (MPQ), and the restraint scale from the Guilford-Zimmerman Temperament Survey (GZTS) were each subjected to exploratory factor analysis in a sample of 252 normal adults. The replicability of the derived factor structure for each scale was tested in a sample of 230 undergraduates using confirmatory factor analysis. The relationships among impulsivity dimensions were also examined by subjecting the extracted factors from the three scales to a second order factor analysis. Although developed as unideminsional measures of the impulsivity construct, the MPQ and GZTS scales were found to have a similar multidimensional structure: a cautious versus spontaneous dimension, and a methodical versus disorganized dimension. This multidimensional model is compared with some recently proposed models for the impulsivity construct. The PRF scale was found to be a unidimensional measure that taps only a cautious/spontaneous facet of the impulsivity construct.
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Although both lithium and triiodothyronine IT 3) augmentation strategies may be rapid. safe. and effective ways of treating patients who fail to respond to tricyclics. little Is known about the clinical or biochemical correlates of... more
Although both lithium and triiodothyronine IT 3) augmentation strategies may be rapid. safe. and effective ways of treating patients who fail to respond to tricyclics. little Is known about the clinical or biochemical correlates of response. We examined clinical and endocrine variables which distinguished T 3 and lithium responders from eact1 other and from non-responders in a post-hoc analysis of two studies involving 51 subjects who had received these augmentation strategies under double-blind conditions. Uthium non~ponders were more severely depressed and had more insomnia and weight loss than responders. T 3 responders could be distinguished from lithium responders by greater weight loss. There were no reliable clinical differences between T 3 responders and non-responders. Thyroid function tests did not differ between any of the treatment or response groups. Our findings suggest that clinical but not endocrine variables may distinguish responders to these two augmentation strategies.
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Oinicallore has long supported the subtype of situational or reactive depression. To date, however, there has been limited empirical research support for this subtype of major depression. We examined demographic, clinical and personality... more
Oinicallore has long supported the subtype of situational or
reactive depression. To date, however, there has been limited
empirical research support for this subtype of major depression.
We examined demographic, clinical and personality features
of situational and nonsituational depression in 89 outpatients
with unipolar nonpsychotic major depressive disorder.
Situational depressives had a less recurrent course of illness
and appeared to respond more completely to the antidepressant
used for their current episode. Demographic and personality
measures did not distinguish situational and nonsituational
depression.
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We conducted the first systematic comparison of patients with Factitious Disorders with Predominantly Psychological Symptoms (FDPS). suspected malingerers. and psychiatric inpatients; all the subjects were recruited from a forensic... more
We conducted the first systematic comparison of patients with Factitious Disorders with Predominantly Psychological Symptoms (FDPS). suspected malingerers. and psychiatric inpatients; all the subjects were recruited from a forensic clinic. Through the employment of the Structured Interview of Reported Symptoms (SIRS). we failed to find consistent differences on SIRS scales between nine FDPS patients and 25 suspected malingerers. However. investigation of individual SIRS items was moderately successful in distinguishing groups. Because of these relatively modest results and the absence of other validation. we questioned the diagnostic validity of FDPS and recommended its placement as provisional diagnosis. We also discuss the implications of FDPS for forensic experts consulting to the courts.
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Letter to editor and response
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A previous paper described the development of the twenty-item Toronto Alexithymia Scale (TAS-20) and reported preliminary evidence of reliability and factorial validity of the scale. This paper describes a study that further evaluated the... more
A previous paper described the development of the twenty-item Toronto Alexithymia Scale (TAS-20) and reported preliminary evidence of reliability and factorial validity of the scale. This paper describes a study that further evaluated the construct validity of the TAS-20 by examining its relationship with measures of personality traits theoretically related or unrelated to the alexithymia construct, as well as its relationship with an observer-rated measure of alexithymia. Evidence of convergent and
discriminant validity of the TAS-20 was demonstrated in samples of university students by a pattern of correlations with the scales of the NEO Personality Inventory and separate measures of psychological mindedness and need-for-cognition that was consistent with theoretical predictions. The concurrent validity of the scale was demonstrated by positive correlations with observer-ratings of alexithymia in a sample of behavioural medicine out-patients.
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Addressing shortcomings of the self-report Toronto Alexithymia Scale (TAS), two studies were conducted to reconstruct the item domain of the scale. The first study resulted in the development of a new twenty-item version of the scale-the... more
Addressing shortcomings of the self-report Toronto Alexithymia Scale (TAS), two studies were conducted to reconstruct the item domain of the scale. The first study resulted in the development of a new twenty-item version of the scale-the TAS-20. The TAS-20 demonstrated good internal consistency and test-retest reliability, and a three-factor structure theoretically congruent with the alexithymia construct. The stability and replicability of this three-factor structure were demonstrated in the second study with both clinical and nonclinical populations by the use of confirmatory factor analysis.
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And 324 more

Background: Anxiety disorders are common problems that result in enormous suffering and economic costs. The efficacy of Web-based self-help approaches for anxiety disorders has been demonstrated in a number of controlled trials. However,... more
Background: Anxiety disorders are common problems that result in enormous suffering and economic costs. The efficacy of Web-based self-help approaches for anxiety disorders has been demonstrated in a number of controlled trials. However, there is little data regarding the patterns of use and effectiveness of freely available Web-based interventions outside the context of controlled trials. Objective: To examine the use and longitudinal effectiveness of a freely available, 12-session, Web-based, cognitive behavioral therapy (CBT) program for panic disorder and agoraphobia. Methods: Cumulative anonymous data were analyzed from 99695 users of the Panic Center. Usage statistics for the website were examined and a longitudinal survey of self-reported symptoms for people who registered for the CBT program was conducted. The primary outcome measures were self-reported panic-attack frequency and severity at the beginning of each session (sessions 2-12). Results: Between September 1, 2002 and February 1, 2004, there were 484695 visits and 1148097 page views from 99695 users to the Panic Center. In that same time period, 1161 users registered for the CBT program. There was an extremely high attrition rate with only 12 (1.03%) out of 1161 of registered users completing the 12-week program. However, even for those who remained in the program less than 12 weeks we found statistically significant reductions (P<.002) in self-reported panic attack frequency and severity, comparing 2 weeks of data against data after 3, 6, or 8 weeks. For example, the 152 users completing only 3 sessions of the program reduced their average number of attacks per day from 1.03 (week 2) to 0.63 (week 3) (P<.001). Conclusions: Freely available Web-based self-help will likely be associated with high attrition. However, for the highly self-selected group who stayed in the program, significant improvements were observed.
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Alexithymia is a personality trait characterised by difficulty identifying and describing subjective emotional feelings, a restricted imagination, and an externally oriented style of thinking. Individuals with high levels of this trait... more
Alexithymia is a personality trait characterised by difficulty identifying and describing subjective emotional feelings, a restricted imagination, and an externally oriented style of thinking. Individuals with high levels of this trait are at risk of developing several common psychiatric disorders. The concept of alexithymia has evolved considerably over the past twenty years, and this important new work responds to the need for a definitive book on the subject. The research, theory and clinical issues surrounding alexithymia are discussed in depth, examining the psychological, biological and social aspects of the construct and their related outcomes. Featuring contributions from researchers and clinicians in the field of emotion processing and regulation, chapters include methods for assessing and reducing alexithymia, and research findings from diverse fields of scientific enquiry including genetics, neuroimaging studies, emotion regulation, attachment and trauma research, and comorbidities with a number of psychiatric and medical disorders. • Discusses the state of the art alexithymia research-there has not been a comprehensive book on the topic for more than twenty years • Demonstrates the relationship between alexithymia and various medical and psychiatric disorders, and offers therapeutic interventions for reducing this personality trait • The book will help to develop more integrative research and interventions in the future
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