摘要：The objective of this study was to develop Physics critical thinking skill test using
computerized adaptive test (CAT) based on item response theory (IRT). This
research was a development research using 4-D (define, design, develop, and
disseminate). The content validity of the items was proven using Aiken’s V. The
test trial involved 252 students in Yogyakarta, Indonesia. The data were analysed
according to partial credit model (PCM). The test reliability was estimated using
PCM based on information function (IF) and standard error measurement (SEM),
whereas the empirical validity was proven through INFIT MNSQ. The results
showed that all items were valid with Aiken’s V spread from 0.67 to 1.00 and
INFIT MNSQ values from 0.86 to 1.20. The item difficulty index ranges from -
0.75 to 1.30, which was a good item difficulty index. The IF and SEM showed that
PhysTCriTS was suitable to measure students’ critical thinking abilities from -1.80
to 1.50, with the reliability score reaches 0.75. The results of this study have an
implication to reduce cheating in a test because each student gets a different item
in accordance to the student’s ability. The test using CAT may accurately and
effectively measure physics critical thinking skill of students.
关键词：CAT; critical thinking skills; IRT; PCM; Physics; century challenge
