A Rasch model analysis of the TPACK instrument in the creative teaching of primary mathematics teachers
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Abstract
Utilising the Technological Pedagogical Content Knowledge (TPACK) instrument, mathematics teachers were evaluated on their level of TPACK in their creative teaching practices. Using Rasch model analysis, this study aimed to assess the validity and reliability of the TPACK instrument. A 30-item survey with a 5-point Likert scale was given at random to 77 primary school teachers. In order to analyse the data and evaluate the instrument using the Rasch model analysis test, including the item and person separation and reliability index, misfit items, item polarity and unidimensionality, Winsteps 5.2.2.0 software was used. The findings demonstrated a significant Cronbach's Alpha (KR20). In conclusion, this TPACK instrument has high validity and reliability for assessing knowledge in the creative teaching of mathematics teachers.
Keywords: Creative teaching, mathematics, Rasch model analysis, teachers.
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