Effective teachers are considered to impact not only academic but also social and attitudinal outcomes of students. The question ‘what makes a teacher effective’ has been long researched. Several methods have been used to measure teacher effectiveness (TE) and each has its own merits and drawbacks. Teacher Effectiveness Scale (TES-KU) developed by Kulsum (2011) is frequently used to assess effectiveness of school teachers. This 60-item scale was used in a research study where most of the subjects found it time-consuming and laborious. Hence, an effort was made to develop a shorter version of this scale. Responses from 200 school teachers were Factor analyzed using Principle Component method. 25 items with highest factor loading were selected.  When researchers need to use multiple scales in their work, this shorter scale (TES-S) would be more practical. Details of method of selection, scoring and interpretation are given in the paper.

Keywords: Teacher Effectiveness, TES Scale, Short Scale of TES, TES-S.