Psychometric evaluation of the Clinical Outcome in Routine Evaluation – General Population: Czech version

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DOI:

https://doi.org/10.51561/cspsych.65.2.163

Keywords:

GP-CORE, Clinical Outcome in Routine Evaluation – General Population, psychological distress, factor structure, MIRT

Abstract

Objectives. This study aimed to assess psychometric properties, such as reliability, construct validity, and cut-off scores, for the Czech version of the Clinical Outcome in Routine Evaluation – General Population (GP-CORE) questionnaire, a tool usable for repeated measurement of psychological distress within routine clinical settings.

Participants and setting. Two general populations and one clinical sample were used with N values of 420, 394, and 345, respectively.

Hypotheses. One of the competing theoretical factor solutions will demonstrate the best fit.

Statistical analysis. To examine the factor structure of the GP-CORE, a confirmatory multidimensional item response theory analysis (graded response model) was employed.

Results. The best fitting model was a bifactor solution representing one content domain of overall distress and two item wording domains (positively and negatively worded items). Clinical cut-off scores were determined to be 1.85 (men) and 1.90 (women).

Study limitations. The GP-CORE can be used as an unidimensional measure of overall distress, but users have to be aware of the influence of positive vs. negative item wording on the responses.

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Published

2021-04-25

How to Cite

Klocek, A., Řiháček, T. ., & Cígler , H. (2021). Psychometric evaluation of the Clinical Outcome in Routine Evaluation – General Population: Czech version. Československá Psychologie, 65(2), 163-177. https://doi.org/10.51561/cspsych.65.2.163

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