Content Validity Test (IOC)
The validity of the questionnaires will be examined by the Item Objective Congruence Index test or in short the IOC test. To conduct the IOC test the researcher will be distributing the questionnaires to at least three experts* and requested the experts to evaluate the validity of the questions in the questionnaire (Rovinelli & Hambelton, 1977). The evaluation score is categorized into 3 levels -1, 0, and +1, the detail related to the score are explained below.