Tim Croudace tjc39cam'ac'uk - PowerPoint PPT Presentation
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Tim Croudace tjc39cam'ac'uk
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Tim Croudace tjc39_at_cam.ac.uk. Department of Psychiatry ... 2- Dept of Health Career Scientist (Public Health) 3- Director of Research: The Psychometrics Centre, ... – PowerPoint PPT presentation
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Title: Tim Croudace tjc39cam'ac'uk
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From Data to Paper (via Stata)
Newnham College, May 2008
- Tim Croudace tjc39_at_cam.ac.uk
- Department of Psychiatry
- 1- Senior Lecturer (Psychometric Epidemiology)
- 2- Dept of Health Career Scientist (Public
Health) - 3- Director of Research The Psychometrics
Centre, Cambridge
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GHQ-12 DataCroudace et al (2003) n1000
3
GHQ-12 Datasummarize / genscore / codebook
4
GHQ-12 Datatab ghq
5
GHQ-12 Datamultihist ghq
6
GHQ-12 Datamultihist ghqscore
7
GHQ-12 Data 1234corrtab 6 items
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GHQ-12 Data 1234 corrtabitems and total
scoreSpearman (w/o p-values)
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Sample n250 at randomfrom n1119
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Rasch model (CML estimation)for 6 GHQ items
(positive)raschtest
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Rasch model (CML estimation)for 6 GHQ items
(positive)
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Rasch model (CML estimation)for 6 GHQ items
(positive)icc
13
Rasch model (CML estimation)for 6 GHQ items
(positive)graph
14
Rasch model (CML estimation)for 6 GHQ items
(positive)info
15
Rasch model (CML estimation)for 6 GHQ items
(positive)fitgraph
16
Rasch model (CML estimation)for 6 GHQ items
(positive)split
17
Rasch model (MML estimation)for 6 GHQ items
(positive)method(MML)
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Rasch model (MML estimation)for 12 GHQ items
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Rasch model (MML estimation)for 12 GHQ items
20
Rasch model (MML estimation)for 12 GHQ items
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