Factor analysis of the Clinical Outcomes in Routine Evaluation - Outcome Measures (CORE-OM) in a Kenyan sample

Fredrik Falkenström, Manasi Kumar, Aiysha Zahid, Mary Kuria, Caleb Othieno

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Background: There is no generic psychotherapy outcome measure validated for Kenyan populations. The objective of this study was to test the acceptability and factor structure of the Clinical Outcomes in Routine Evaluation - Outcome Measure in patients attending psychiatric clinics at two state-owned hospitals in Nairobi. Methods: Three hundred and forty-five patients filled out the CORE-OM after their initial therapy session. Confirmatory and Exploratory Factor Analysis (CFA/EFA) were used to study the factor structure of the CORE-OM. Results: The English version of the CORE-OM seemed acceptable and understandable to psychiatric patients seeking treatment at the state-owned hospitals in Nairobi. Factor analyses showed that a model with a general distress factor, a risk factor, and a method factor for positively framed items fit the data best according to both CFA and EFA analysis. Coefficient Omega Hierarchical showed that the general distress factor was reliably measured even if differential responding to positively framed items was regarded as error variance. Conclusions: The English language version of the CORE-OM can be used with psychiatric patients attending psychiatric treatment in Nairobi. The factor structure was more or less the same as has been shown in previous studies. The most important limitation is the relatively small sample size.

Original languageEnglish
Article number48
JournalBMC psychology
Volume6
Issue number1
DOIs
Publication statusPublished - 1 Oct 2018
Externally publishedYes

Keywords

  • Factor analysis
  • Outcome measurement
  • Psychological assessment
  • Psychological distress
  • Psychotherapy

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