Introduction: The purpose of the study is to contribute to the assessment of the construct validity of the STReF (Subjective Therapeutic Report Form), a questionnaire meant to be used in psycho-oncology to evaluate relationships between patients and medical staff; results from the application of this instrument may orientate intervention aimed at improving the therapeutic relationship. STReF is composed of 2 symmetric sections - one administered to patients and the other to medical staff. Both are composed of 3 subscales: Communication within the hospital, Care, and Quality of life. Methods: The STReF was administered to 230 patients hospitalized in 4 hospitals in Piedmont, and to their medical staff. A multitrait-multimethod approach via second-order confirmatory factor analysis was applied to test both the multiple-indicator factorial structure and the method effect (patient versus medical staff ratings). Results: Two factors emerged instead of 3 (Communication/Care as a single factor, and Quality of life). Responses showed a consistent method effect pertaining to the Communication/Care factor in the patients’ section and to the Quality of life factor in the medical staff section of the questionnaire. Conclusions: Some guidelines for the application of the STReF and possible further developments of research are outlined.

Contribution to an Assessment of the Validity of the SubjectiveTherapeutic Report Form (STReF) Using Second-OrderConfirmatory Factor Analysis Approach toMultitrait-Multimethod Analysis

TESTA, Silvia;VEGLIA, Fabio;BARA, Bruno Giuseppe
2010

Abstract

Introduction: The purpose of the study is to contribute to the assessment of the construct validity of the STReF (Subjective Therapeutic Report Form), a questionnaire meant to be used in psycho-oncology to evaluate relationships between patients and medical staff; results from the application of this instrument may orientate intervention aimed at improving the therapeutic relationship. STReF is composed of 2 symmetric sections - one administered to patients and the other to medical staff. Both are composed of 3 subscales: Communication within the hospital, Care, and Quality of life. Methods: The STReF was administered to 230 patients hospitalized in 4 hospitals in Piedmont, and to their medical staff. A multitrait-multimethod approach via second-order confirmatory factor analysis was applied to test both the multiple-indicator factorial structure and the method effect (patient versus medical staff ratings). Results: Two factors emerged instead of 3 (Communication/Care as a single factor, and Quality of life). Responses showed a consistent method effect pertaining to the Communication/Care factor in the patients’ section and to the Quality of life factor in the medical staff section of the questionnaire. Conclusions: Some guidelines for the application of the STReF and possible further developments of research are outlined.
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Subjective Therapeutic Report Form (STReF); psycho-oncology; construct validity
DE MARCO I.; GIORCELLI S.; TESTA S.; VEGLIA F.; BARA B. G.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/81165
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