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This pilot study was conducted with the aim to validate the instrument used in evaluating the competency of teachers in the field of technical and vocational education. This instrument consists of 45 items and is administered to 53 teachers from a selected vocational college. The Rasch Model with the help of the Winstep Version 3.72.3 software has been used in this study for the purpose of checking the functionality of the item and the validity of the instrument.  An analysis has been made based on the suitability of items in measuring the construct, item and person reliability and separation index, polarity and residual correlation value. The Rasch analysis showed that the item reliability was valued at 0.92 while the person reliability valued at 0.96 with their item MNSQ between overfit ( 1.4). Based on the findings, there are three items that were dropped because of failing to meet the inspection criteria. The finalized instrument consists of 42 items, in which it is suitable for evaluating the four constructs in the competency evauation of technical and vocational teachers in vocational colleges.

Validation of technical and vocational teachers’ competency evaluation instrument using the rasch model