An instrument is developed to measure the performance of lecturers in the management of the teaching and learning process. The first instrument consisted of 30 items using criteria of Centra (1976; 1993) and Miller (1974; 1987) about the a) quality of lecturer's perfomance in the classroom, b) content of the course and c) evaluation of students' achievement. The first try out is conducted at the Dept of Architecture, Faculty of Engineering, Untar. The results of the first try out indicated that a. five items did not meet the critical r value of the corrected items-total correlation (r<0.288). b. the reliability of the instrument using a Cronbach is adequately high (r=0.86). c. according to students the instrument is too long, and should not contain open questions. A second instrument is developed using the same criteria but the amount of items is reduced to 10 items (more than 60%). The second try out is conducted at the Faculty of Engineering and Faculty of Medicine. The result obtained revealed that all of the items are valid, and the internal consistency using a Cronbach is 0.67-0.73. More try outs should be conducted to have a better instrument.