DEVELOPMENT OF PERCEIVED TEACHER CREDIBILITY (PTC) SCALE
Abstract
- The main aim of this study is to develop the Perceived Teacher Credibility Scale (PTC). After developing the PTC, it was validated in psychometric terms that it could become a reliable and valid instrument. A total of 400 undergraduate students from Sagaing University of Education participated in this study and selected by using stratified random sampling. A descriptive survey design was used to investigate the factor structure of the perceived teacher credibility. A survey with 120 items was designed based on existing literature and theory to examine PTC. Quantitative data were analyzed using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) with SPSS 22.0 and R software (version 4.0.1). From the results, a provisional scale was developed, measuring perceived teacher credibility. The scale has 33 items, consisting of three subscales of PTC, namely Perceived Trustworthiness, Perceived Competence and Perceived Caring. A confirmatory factor analysis (CFA) model proved that all dimensions and sub dimensions of the PTC had good internal structural validity. The model data fulfilled the goodness of fit criteria (χ2/df < 3.0, CFI>0.90, TLI> 0.90, RMSEA ≤ 0.07; CR ≥ 0.7). The EFA showed that all items of the three dimensions grouped perfectly according to source credibility theory, and the factor loading values of all items were greater than or equal to .55. The results of the internal consistency analysis (α = .970) showed that the PTC scale is a reliable measurement.
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Year
- 2021
Author
-
Phyoe Phyoe
Subject
- Educational Psychology
Publisher
- Myanmar Academy of Arts and Science (MAAS)