Validation of Questionnaire on Teachers’ Beliefs and Practices of Cooperative Group Work Assessment

This paper aimed to validate a questionnaire intended to measure secondary school teachers’ beliefs and practices of cooperative group work assessment in selected secondary schools in SNNPRS, Ethiopia. To this effect, five experts were selected to rate the content and face validity of the tool. To rate the questionnaire for construct validity, 213 randomly selected secondary school teachers were involved. The validation procedures made use of face validity index, Item Content Validity Index (I-CVIs) and Content Validity Index for scale (S-CVI/Ave), principal component analysis (PCA), and Cronbach alpha. The final questionnaire, which consisted of 31 items, has been found psychometrically valid and reliable to measure teachers’ beliefs and practices of cooperative group work assessment.