![]() ![]() In summary, Rasch Model is suitable to apply in instrument validation process because the concept of item response theory. Percent-agreement statistics can be calculated and explained easily. Assessor agreement can be calculated as percent-agreement. Three experts in the building construction subject examined the content validity of SPCD and CMAT. ![]() The construct validity was analyzed based on the Rasch model with infit and outfit mean square (MNSQ) value. The value of reliability was based on Cronbach alpha with appropriate values range. The ILS consists of four constructs, whereas the SPCD and CMAT validate based on three constructs. A small survey was conducted on 28 vocational college students enrolled in the Building Construction course. The study aims to produce empirical evidence of validity and reliability using the Rasch Model. Jones assessed the test he developed by administering it to a new group of participants. Students’ Perception in Cognitive Dimension (SPCD) was developed to identify student perception toward their cognitive abilities, and Students’ Cognitive Mastery Achievement Test (CMAT) is used to measure student mastery in a particular subject. Reliability and validity both have an important and related role in producing accurate resources, but they require separate evaluations, as one can be apparent without the other. The Felder-Solomon Index of Learning Styles (ILS) is essential to find out the learning style abilities of learners. Three sets of research instruments were developed in this study. This paper discussed how the applying of Rasch Model in validity and reliability of research instruments. ![]()
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