摘要：This study aims to develop a performance assessment model through self-assessment techniques possible to measure students' science process skills in science-based inquiry teaching learning process. The research used simplified design of Research and Development from needs analysis, product development stage, and validation. Validation score indicates three aspects; usefulness 80%, model construction 83.33%, and readability model 81.67% all rated as very good criteria. In addition, the results of questionnaire about the implementation of the model obtained positive approval from the users. The results show that the measurement model is uniquely useful to measure the student skills of science processing in a junior high school level.
