2017•International Journal of Sciences: Basic and Applied ResearchOpen access

Assessing Instrument Reliability and Validity in Exploring Teacher’s Roles and Attitude in ESP

Arta Vinca

Abstract

This study aimed to validate a questionnaire on Exploring Teacher’s Roles and Attitude in ESP Classes - a Case Study in Higher Education in Kosovo. Participants (n=215) were undergraduate students who have taken a Legal English course at the University of Prishtina for two semesters. Test reliability, internal reliability, and construct validity of the questionnaire were determined. Overall internal reliability (Cronbach's alpha= Cronbach’s alpha = 0.8377) indicated a high level of internal consistency. Construct validity for the questionnaire was satisfactory as the analysis proved p-value of 0.08, indicating correlation at 90% level of confidence.

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Key concepts: Cronbach's alpha, Internal consistency, Construct validity, Reliability (semiconductor), Psychology, Construct (python library), Test (biology), Validity