Abstract

The objectives of this study included to study the appropriateness of indicators for selection in the developed model, to examine the fitness of the developed model, and to verify the factor loading value of major components, sub-components, and indicators, respectively. Sample included 2,359 secondary school principals under the jurisdiction of the Office of the Basic Education Commission. Collecting data using a set of rating scale questionnaires were derived from 860 randomly selected proportional random sampling. Data were analyzed by using statistical program and AMOS program. The findings were corresponded to the following hypotheses: (a) The 62 indicators were suitable for the criteria as average equal to or higher than 3.00 and distribution coefficients equal to or less than 20% which were selected in the model, (b) The developed models were fitted with empirical data according to the value of relative Chi-square (CMIN/DF), root mean square error of approximation (RMSEA), goodness-of-fit index (GFI) adjusted goodness-fit index (AGFI), comparative fit index (CFI), and normed fit index (NFI) in accordance with the criteria from first and second order of confirmative factor analysis, and (c) the major components had factor loading ranged from 1.00 to 1.28, which were higher than the criterion at 0.70. The minor components had factor loading between 0.83 and 1.28. The indicators had factor loading ranged from 0.88 to 1.16, which are higher than the criterion as 0.30, respectively.

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