In several years, structural equation modeling or popularly known as SEM is the first generation path modeling widely used by researchers and practitioners nowadays to analyze the interrelationship among variables in a model. In this study, the questionnaire was designed based on six constructs which is headmaster's instructional leadership as exogenous and parental involvement in preschool education, preschool teachers' information and communication technology (ICT) in teaching, teacher professional development, and preschool development plans and effective teaching among preschool teachers are endogenous variable. The questionnaires were distributed to 280 preschool teachers in Sarawak. The total of 267 questionnaires were returned to researcher for the validity and reliability test in this study. The ultimate objective of this article is to acquire the best fit of a research instrument for the effective teaching study using structural equation model (SEM) that enable to taking into account the unreliable factors (items) between exogenous and endogenous constructs. The items of the constructs undergo the confirmatory factor analysis (CFA) procedure involve in unidimensionality test, convergent validity, construct validity and discriminant validity. The result revealed the constructs of the research model achieved the validity and reliability for other further analysis in acquiring high accuracy on the prediction outcomes.

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