The Treatment Expectation Questionnaire Tool: A Cross-Cultural Adaptation and Psychometric Evaluation in Turkey

Abstract

Patients' general treatment expectations are an important indicator of the outcomes of the various treatments they will receive. There is a need for valid and reliable assessment tools that measure the expectations of patients receiving rehabilitation services. This study aimed to translate and validate the Treatment Expectations Questionnaire (TR.TEX-Q) in Turkish patients to assess their treatment-specific expectations. 150 physiotherapy patients were enrolled in the study. The original version of the Treatment Expectation Questionnaire was translated into Turkish. Cronbach's alpha was used to investigate internal consistency. Intraclass correlation coefficients were used to assess test-retest reliability. Pearsons's correlation was used to calculate convergent and divergent validity. Principal component analysis produced a 15-items scale which had a 6-factors structure. Cronbach's alpha values ranged from .649 to .879. Test-retest reliability was high for total score and for all subscales. The ICC was between .622 and .852, p < .001. TR.TEX-Q showed good convergent validity, a moderate correlation was found between the Positivity Scale (rho = .45, p < .001). For divergent validity, low to moderate correlation was found between the TR.TEX-Q and the HADS scores. The Turkish version of Treatment Expectation Questionnaire has good reliability and validity data in terms of evaluating the treatment expectations of patients who will receive physiotherapy.