| Summary: | The purpose of this study was to develop a calibrated item bank in
computerized adaptive test for measuring students’ performance in mathematics. The
standard performnce for cat was also determined and the characteristics of cat
based on arcs model were examined. This study was conducted in four stages
including (1) developing an item bank, (2) developing a cat, (3) setting a
performance standard and (4) analysing arcs model. Rasch measurement model was
used in the development of item bank where 600 mathematics item were calibrated
using concurrent comment item equating method. A total of 334 items were found
fulfilled the psychometrics properties in developing an item bank for cat. The item
difficulty for the items was used as item parameter in developing a cat on platform
in the second stage. The cat was developed on concerto platform and adminitered
to 381 secondary students from 6 schools. The students’ mathematics performance was
analysed based on the recommended cutscores obtained in stage three. In stage three,
the recommended cutscores for mathematics performance using cat was acquired
from a standard setting study using bookmark method. Four performance levels,
namely, below basic, basic, proficent and advanced level was yielded from three
recommended cutscores.
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