Background This study investigates the extent to which the GHQ-12 exhibits configural, metric and... more Background This study investigates the extent to which the GHQ-12 exhibits configural, metric and scalar invariance across six ethnic groups in Britain and Northern Ireland, using the UK Household Longitudinal Study (N = 35 410). Methods A confirmatory factor analysis was carried out on a white British group in order to establish an adequate measurement model. Secondly, a multi-group confirmatory factor analysis was conducted in order to assess measurement invariance. A sensitivity analysis comparing summated and latent means across groups was carried out. Finally, revised estimates of scale reliability were derived using two different methods. Results A one-factor model including correlated error terms on the negatively phrased items showed superior fit in all ethnic groups. Tests for equal factor loadings and intercepts also showed adequate fit demonstrating metric and scalar invariance. Latent and summated scale estimates of mean group differences were similar for all groups. Sca...
1 Nick Allum is Senior Lecturer in Empirical Sociology at the University of Essex. He obtained ..... more 1 Nick Allum is Senior Lecturer in Empirical Sociology at the University of Essex. He obtained ... 2 Sanna Read has a PhD in Psychology. She works as a research fellow at the London School ... 3 Patrick Sturgis is Professor of research methodology in the division of social statistics ...
Three corpora of textual data on biotechnology from a range of sources(newspaper articles, focus ... more Three corpora of textual data on biotechnology from a range of sources(newspaper articles, focus group transcriptions and responses to an openendedquestion from a survey) were analysed using the computer programALCESTE. A comparison of characteristic classes of words from eachcorpus was made in order to identify the stable components in the public’sperception of biotechnology seen in differing communicative contexts. Theresults indicate that at least three distinct representations are present in allthe spheres of discourse explored. The steps required to prepare text andcarry out analyses using the program are described, and an assessment ismade of the method and its prospects as a research tool.
Background This study investigates the extent to which the GHQ-12 exhibits configural, metric and... more Background This study investigates the extent to which the GHQ-12 exhibits configural, metric and scalar invariance across six ethnic groups in Britain and Northern Ireland, using the UK Household Longitudinal Study (N = 35 410). Methods A confirmatory factor analysis was carried out on a white British group in order to establish an adequate measurement model. Secondly, a multi-group confirmatory factor analysis was conducted in order to assess measurement invariance. A sensitivity analysis comparing summated and latent means across groups was carried out. Finally, revised estimates of scale reliability were derived using two different methods. Results A one-factor model including correlated error terms on the negatively phrased items showed superior fit in all ethnic groups. Tests for equal factor loadings and intercepts also showed adequate fit demonstrating metric and scalar invariance. Latent and summated scale estimates of mean group differences were similar for all groups. Sca...
1 Nick Allum is Senior Lecturer in Empirical Sociology at the University of Essex. He obtained ..... more 1 Nick Allum is Senior Lecturer in Empirical Sociology at the University of Essex. He obtained ... 2 Sanna Read has a PhD in Psychology. She works as a research fellow at the London School ... 3 Patrick Sturgis is Professor of research methodology in the division of social statistics ...
Three corpora of textual data on biotechnology from a range of sources(newspaper articles, focus ... more Three corpora of textual data on biotechnology from a range of sources(newspaper articles, focus group transcriptions and responses to an openendedquestion from a survey) were analysed using the computer programALCESTE. A comparison of characteristic classes of words from eachcorpus was made in order to identify the stable components in the public’sperception of biotechnology seen in differing communicative contexts. Theresults indicate that at least three distinct representations are present in allthe spheres of discourse explored. The steps required to prepare text andcarry out analyses using the program are described, and an assessment ismade of the method and its prospects as a research tool.
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