John J Horan
Arizona State University, Counseling and counseling psychology, Faculty Member
- Practice restricted to evidence- based research consultation in Clinical Psychology and Behavioral Health.edit
Background Cognitive therapy and behavioural activation are both widely applied and effective psychotherapies for depression, but it is unclear which works best for whom. Individual participant data (IPD) meta-analysis allows for... more
Background Cognitive therapy and behavioural activation are both widely applied and effective psychotherapies for depression, but it is unclear which works best for whom. Individual participant data (IPD) meta-analysis allows for examining moderators at the participant level and can provide more precise effect estimates than conventional meta-analysis, which is based on study-level data. Aims This article describes the protocol for a systematic review and IPD meta-analysis that aims to compare the efficacy of cognitive therapy and behavioural activation for adults with depression, and to explore moderators of treatment effect. (PROSPERO: CRD42022341602) Method Systematic literature searches will be conducted in PubMed, PsycINFO, EMBASE and the Cochrane Library, to identify randomised clinical trials comparing cognitive therapy and behavioural activation for adult acute-phase depression. Investigators of these trials will be invited to share their participant-level data. One-stage IP...
Research Interests:
Research Interests:
Internet-delivered mindfulness and relaxation training were compared with each other and a no-treatment control on stress, coping, and mindfulness measures. Participants ( n = 114) were assessed before and after treatment, and their... more
Internet-delivered mindfulness and relaxation training were compared with each other and a no-treatment control on stress, coping, and mindfulness measures. Participants ( n = 114) were assessed before and after treatment, and their compliance with the intervention they received was tracked. The treatments were received at a time, place, and computer of the participants’ choosing with the proviso that three exercises be completed during each of three successive weeks. Both mindfulness and relaxation reduced stress, but only mindfulness training increased mindfulness and reduced emotion-focused coping.
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Although self-disclosure is generally considered to be an essential ingredient of existential approaches to counseling, the concept itself is not well-defined and its effects on counseling process and outcome have not been clearly... more
Although self-disclosure is generally considered to be an essential ingredient of existential approaches to counseling, the concept itself is not well-defined and its effects on counseling process and outcome have not been clearly documented. This study examined the potential effects of self-disclosure in a clinical setting. Sixty male college seniors with deficient job-interviewing skills were randomly assigned to one of five treatments in a 2 x 2 + 1 design. The presence or absence of two kinds of counselor self-disclosures were crossed and embedded in a standard interview skills training program. The standard program and an additional no treatment cell served as control conditions. Four different counselors treating subjects on an individual basis provided predetermined genuine self-disclosures at different points in the interviews. Their self-disclosures reflected the qualities of intimacy and /or skill display. Comparisons between the existential and coping-mastery model litera...
ABSTRACT Interventions for helping young adults cope with the stress produced by their parents’ divorce are rarely described or evaluated. Transitions, derived from a stress inoculation framework, was designed to foster stress-coping and... more
ABSTRACT Interventions for helping young adults cope with the stress produced by their parents’ divorce are rarely described or evaluated. Transitions, derived from a stress inoculation framework, was designed to foster stress-coping and parent–young adult relationship skills via the Internet. Participants (95 young adult college students who had experienced parental separation or divorce within the past year) were randomly assigned to experimental and delayed-treatment control conditions. Intervention modules included psychoeducation, relaxation, mindfulness meditation, cognitive restructuring, and communication skills. A multivariate analysis of variance yielded a significant treatment-by-repeated-measures interaction; univariate follow-up analyses of variance showed improvement on stress but not on relationship variables measuring quality of relationship with mother or father. Neither moderator nor intent-to-treat analyses altered this outcome pattern.
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The measurement of scholarly productivity is embroiled in a controversy concerning the differential crediting of coauthors. Some researchers assign equivalent shares to each coauthor; others employ weighting systems based on authorship... more
The measurement of scholarly productivity is embroiled in a controversy concerning the differential crediting of coauthors. Some researchers assign equivalent shares to each coauthor; others employ weighting systems based on authorship order. Horan and his colleagues use simple publication totals, arguing that the psychometric properties of labor-intensive alternatives are unknown, and relevant ethical guidelines for including coauthors are neither widely understood nor consistently followed. The PsycLIT and SSCI data bases provided exhaustive publication and citation frequencies for 323 counseling psychology faculty. All PsycLIT scoring permutations yielded essentially identical information; inter-correlations ranged from .96 to unity. Moreover, all PsycLIT methods correlated highly with SSCI within a very narrow band. Since attention to the number and/or ordinal position of coauthors yields no useful information, productivity should be defined parsimoniously in terms of simple pub...
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Once cancer patients have completed treatment, experiences with stress-related sequelae that impede recovery often persist. Mindfulness has been shown to alleviate symptoms associated with this stress. Cancer survivors were randomly... more
Once cancer patients have completed treatment, experiences with stress-related sequelae that impede recovery often persist. Mindfulness has been shown to alleviate symptoms associated with this stress. Cancer survivors were randomly assigned to either six-week Internet-delivered mindfulness training or a usual-care control and were compared on the following outcome battery: The Hospital Anxiety and Depression Scale, the Profile of Mood States, the Pittsburgh Sleep Quality Index, and the Fatigue Symptom Inventory. Assessments were conducted before and after treatment and intervention compliance was monitored. Mindfulness treatments were delivered at a time and on a computer of the participants’ choosing. Multivariate and univariate follow-up analyses indicated that mindfulness training produced significant benefits on all measures. Effect sizes were all medium to large as well. Online mindfulness instruction represents a widely-accessible intervention for reducing psychological distr...