The purpose of this paper is to develop a multiple item scale for measuring technology leadership competency of educational administrators. The population of the study was formed by 127 school principals in Maltepe and Kadikoy districts in Istanbul. To obtain content validity, expert panels composed of 6 academics and 1 local information and computer technologies (ICT) coordinator and they made review and rated the 56-items draft scale in terms of the relevance of each item with respect to study purpose (CVI=0.708). The exploratory factor analysis (EFA) revealed the measurement model accounted for 65.35% of total variance and factor loadings ranged between .522 and .838 (KMO=.899, p<.001). Based on the model fit and modification indices, three alternative models were constructed thus it was found that 32-items five-factor structure (Model-4) was the best-fitting model (x2=645.527; x2/df= 1.416; CFI=.913; NFI=.759; RMSEA=.057). In the predictive validity study, the areas under the ROC curve for the entire scale were found to be 0.745 and .712, suggesting cut-off point of 121.500 and 123.500 for total score. Overall internal consistency reliability of the scale was found to be .943 with subscales ranging from .939 -.941. The split-half reliability was found to be 0.735. The values of item-total correlation ranged from .449 to .675
