Validity and reliability of instruments3/15/2024 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. 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. 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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