Testing the Measurement Invariance of a Teacher Educational Innovation Competency Model
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Abstract
This research aimed to develop a measurement model of teachers’ educational innovation competency among secondary teachers, and to examine the measurement invariance of the model across gender, educational level, and work experience. The sample consisted of 349 teachers selected through a three-stage sampling procedure. First, 10 provinces were randomly selected from five regions of Thailand. Second, 60 schools were randomly selected from the selected provinces. Third, teachers were randomly selected from each school. The research instrument was a measure of teachers’ educational innovation competency with acceptable content validity (IOC = 0.60–1.00) and reliability, as assessed by McDonald’s omega, ranging from .92 to .94. Data were analyzed using confirmatory factor analysis and measurement invariance analysis.
The results revealed that the measurement model of teachers’ educational innovation competency comprised five components: innovative thinking, learning management for innovation creation, collaboration and teamwork, continuous self-development, and being a good role model. Second-order confirmatory factor analysis indicated that the model was appropriate and fit the empirical data well (χ²(40, n = 349) = 51.23, p = .110, χ²/df = 1.28, NFI = 1.00, RMSEA = .028, RMR = .015). The first-order factor loadings ranged from .64 to .92, while the second-order factor loadings ranged from .93 to .99, all statistically significant at the .01 level. The model demonstrated configural invariance across gender, educational level, and work experience; however, some factor loadings and indicators varied across groups.
The findings provide new knowledge that the measurement model has a common structural framework and can be used reliably to assess teachers across different groups. Nevertheless, teacher development should move beyond a one-size-fits-all approach toward differentiated development, with activities designed to correspond to the strengths and needs of teachers in different groups.
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