Dimensionality and construct validity of School Development Expectation Scale for secondary students.

This study aims to establish the dimensionality and construct validity of the School Development Expectation Scale for use with Year 12 students. The scale is made up of five expectation subscales in the vocational, academic, personal, social and religious development domains. The validation sample comprised 8,310 Year 12 students from 70 schools. Traditional confirmatory factor analysis supported the theory postulated five-factor model. The scale was then calibrated using Rasch rating scale model. Recommendations were made regarding how to further refine the scale.