Construction and Standardization of Teaching Effectiveness Observation Scale (TEOS)

This paper has been designed to construct and standardize the observation scale to measure the Teaching Effectiveness of school teachers. A series of steps were followed to develop and standardize the scale such as planning, preparing first and second draft of items, item writing and analysis, finalizing of items, scoring, reliability, validity and setting of norms. For the first draft of the scale, 90 items were written for five dimensions of the scales i.e., planning of the lesson, execution, classroom management, professional and personal competence of teacher and, closing the lesson. The scale was given to 20 experts belonging to the field of education, sociology, psychology and language for expert review. 15 teachers were also observed by the investigators to observe the likeliness of items. On the basis of unanimous decision 75 items were retained for the second draft. The final draft was administered on randomly selected sample of 100 teachers from the secondary and senior secondary schools of Haryana. Final selection of the items was done by applying t-test computation. Only those items were retained which were found to be significant at 0.05 or at 0.01 level. Thus, out of 75 items 19 items were rejected and 56 items (significant items) were retained for the final draft. Reliability of the scale was determined by test-retest (0.727), split-half reliability (0.970) and internal consistency method (which ranges from 0.195 to 0.555). The coefficient of correlation between the dimensions of teaching effectiveness ranges from 0.353 to 0.688 which indicates high validity. z-Score norms have been prepared to determine the level of teaching effectiveness.