Psychometric properties of the communication skills attitude scale (CSAS) measure in a sample of Iranian medical students
Journal Title: Journal of Advances in Medical Education and Professionalism - Year 2018, Vol 6, Issue 1
Abstract
Introduction: Communication skill (CS) has been regarded as one of the fundamental competencies for medical and other health care professionals. Student’s attitude toward learning CS is a key factor in designing educational interventions. The original CSAS, as positive and negative subscales, was developed in the UK; however, there is no scale to measure these attitudes in Iran. The aim of this study was to assess the psychometric characteristic of the Communication Skills Attitude Scale (CSAS), in an Iranian context and to understand if it is a valid tool to assess attitude toward learning communication skills among health care professionals. Methods: Psychometric characteristics of the CSAS were assessed by using a cross-sectional design. In the current study, 410 medical students were selected using stratified sampling framework. The face validity of the scale was estimated through students and experts’ opinion. Content validity of CSAS was assessed qualitatively and quantitatively. Reliability was examined through two methods including Chronbach’s alpha coefficient and Intra class Correlation of Coefficient (ICC). Construct validity of CSAS was assessed using confirmatory factor analysis (CFA) and explanatory factor analysis (PCA) followed by varimax rotation. Convergent and discriminant validity of the scale was measured through Spearman correlation. Statistical analysis was performed using SPSS 19 and EQS, 6.1. Results: The internal consistency and reproducibility of the total CSAS score were 0.84 (Cronbach’s alpha) and 0.81, which demonstrates an acceptable reliability of the questionnaire. The item-level content validity index (I-CVI) and the scale-level content validity index (S-CVI/ Ave) demonstrated appropriate results: 0.97 and 0.94, respectively. An exploratory factor analysis (EFA) on the 25 items of the CSAS revealed 4-factor structure that all together explained %55 of the variance. Results of the confirmatory factor analysis indicated an acceptable goodness-offit between the model and the observed data. [χ2/df=2.36, Comparative Fit Index (CFI)=0.95, the GFI=0.96, Root Mean Square Error of Approximation (RMSEA)=0.05]. Conclusion: The Persian version of CSAS is a multidimensional, valid and reliable tool for assessing attitudes towards communication skill among medical students.
Authors and Affiliations
AFSANEH YAKHFOROSHHA, MANDANA SHIRAZI, NASER YOUSEFZADEH, AMIN GHANBARNEJAD, MOHAMMADALI CHERAGHI, RITA MOJTAHEDZADEH, BEHROOZ MAHMOODI-BAKHTIARI, SEYED AMIR HOSSEIN EMAMI
Keywords
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