The Psychometric Properties of the Technological Pedagogical Content Knowledge Scale

Article History: Received 20.12.2013 Received in revised form 05.07.2014 Accepted 12.07.2014 Available online 02.12.2014 The aim of this study is to develop a scale based on Technological Pedagogical Content Knowledge (TPACK) model with giving more importance to learner centered education and teachers’ facilitator role in constructivist learning comparing by previous TPACK scales. In order to prepare item-pool, first we examined previous research and scales and we add additional and novel items to include constructivist view of learning. The new scale developed within this study applied on 724 preservice teachers, who were selected with stratified sampling. We used confirmatory factor analysis to examine construct validity. Additionally we also performed a criterion validity study to confirm validity of the scale. We calculated Cronbach alpha coefficients, and corrected item-total correlations for reliability. According to validity analyzes we concluded that the scale has a construction with 51 items under 7 factors. Internal consistency coefficients and test-retest reliability coefficients showed that the reliability of the scale is at an acceptable level. © 2014 IOJES. All rights reserved