Validity and reliability level of an application measuring school principle's decision making

Abstract

The objective of the research is to obtain information about the effect of authority and decision making on managerial effectiveness on principal of state primary school. The research was conducted to all of state primary school principal at The City of north Jakarta by using a survey method with path analysis applied in testing hypothesis. The number 80principal as sample was selected by using Slovin formula. The research concludes: (1). there is direct effect of authority on managerial effectiveness. (2). there is direct effect of decision making on managerial effectiveness. (3). there is direct effect of authority on decision making. Therefore to enhance principal's managerial effectiveness can be carried out by authority, and decision making.