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All Journal PENDIPA Journal of Science Education
Nurbaiti, Urai
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Chemistry Education Mathematics

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Feasibility of Analytical Thinking Test Instrument: An Analysis of Test Quality and Learner Abilities Using the Rasch Model Nurbaiti, Urai; Afandi; Tenriawaru, Andi Besse
PendIPA Journal of Science Education Vol 8 No 3 (2024): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.8.3.488-497

Abstract

This study aimed to determine the quality of analytical thinking test instruments and the level of students' abilities through Rasch model analysis. This research used descriptive method with quantitative approach. The sample used amounted to 246 students. The instrument used was an analytical thinking test instrument totaling 9 items in the form of descriptions. Data collection was carried out by testing the test instrument. Data analysis was carried out by Rasch model analysis. The results showed that all items were fit. The level of item difficulty varies consisting of 1 very difficult question, 4 difficult questions, 3 easy questions, and 1 very easy question. Cronbach's alpha value of 0.80 is categorized as good, person reliability value of 0.79 is categorized as sufficient, and item reliability value of 0.98 is categorized as excellent. The level of item difficulty consists of 1 very difficult question, 4 difficult questions, 3 easy questions, and 1 very easy question. Person separation value 1.92 (H = 2.89, rounded to 3) and item separation 6.26 (H = 8.68 rounded to 9). Person measure analysis obtained 114 high ability (46%), 27 medium ability (11%), and 105 low ability (43%). Person fit analysis obtained 178 fits (72%), 2 misfits (1%), and 66 outliers (27%).
Co-Authors Afandi Tenriawaru, Andi Besse