Menentukan Kesahan Dan Kebolehpercayaan Item Pentaksiran Mata Pelajaran Rombak Rawat Sistem Klac Dengan Menggunakan Model Pengukuran Rasch

Abstract

This study was carried out to determine the validity and reliability of assessment items used in Continuous Assessment in the “Rombak Rawat Sistem Klac” subject. Item analysis is conducted to assess the psychometric characteristics of assessment items in order to be used as a valid assessment item with high consistency. All dichotomous items were analyzed based on Rasch Measurement Model based on Item Response Theory (IRT) using Winstep software. This quantitative study was administered pioneering to 65 respondents who attended the “Sijil Servis Kenderaan Ringan” at Bandar Darulaman Community College. The findings show that 2 items show negative PTMEA-Corr values, where those items do not measure the topic or there are respondents who respond to the contradictory topic. Meanwhile, 6 items detected are outside the range of MNSQ infit and outfit values. The overall analysis results show that 7 out of 30 assessment items are proposed to be repaired or removed as an assessment items for the “Rombak Rawat Sistem Klac” subject. Good psychometric characteristics in an assessment items after going through an items analysis process can be used as a valid instruments for that subject.