Development of Perceived School Effectiveness Scale: Validity and Reliability Study

The purpose of this study is to develop a scale that provides valid and reliable measurements in determining school effectiveness based on student perceptions. The study group consisted of 549 high school students in 2017-2018 academic year. Expert opinion was taken into consideration for the face and content validity of the scale. For the construct validity, exploratory (EFA) and confirmatory (CFA) factor analyses were conducted on different samples. As a result of EFA, a six-factor structure was obtained. Factors were named as "Space Adequacy", "Personal Development", "Social Value Consciousness", "Place Attractiveness", "Technological Support" and "Sports and Art Support". The factors explained 66.11% of the total variance. As a result of CFA, it was found that the six-factor structure had good fit of the model. In order to obtain evidence for its reliability, coefficients of Cronbach's alpha (a), stratified alpha and composite reliability were calculated. Results indicated that the scale items could measure the construct reliably. Item analysis proved that all the items had high discrimination in measuring the measured construct. As a result, it can be concluded that Perceived Effective School Scale is a scale that provide valid and reliable measurements in determining school effectiveness based on student perceptions.