ABSTRACT
The objectives of this research are: 1) to know the characteristic of psychomotor performance assesment based on scientific approach in authentic assesment framework on bacteria experiment x class senior high school; 2) to know the feasibility of psychomotor performance assesment based on scientific approach in authentic assesment framework on bacteria experiment x class senior high school; 3) to know the effectiveness of psychomotor performance assesment based on scientific approach in authentic assesment framework on bacteria experiment x class senior high school. The development research uses Research and Development model (R&D) refering to the 4-D model that has been modified, such as: 1) define; 2) desaign; 3) development; and 4) implementation. The analysis of research data uses two techniques are descriptive and qualitative. The result of the research are as follows: 1) the characteristic of psychomotor performance assesment on bacteria experiment based on scientific approach in authentic assesment framework is in the form of performance assessment rubric that refers to scientific approach such as: observation, asking, finding information, associating, giving conclusion, and comunicating; the developed performance assesment rubric is completed with criteria and assesment format of student work; 2) the feasibility of psychomotor performance assesment product based on scientific approach is valid through constract validity and content validity are very good; 3) The effectiveness of psychomotor performance assessment is indicated by significant differences of average value of psychomotor performance between performance assessment class and exiting learning class, that receiving average score 87,88 for the performance assessment class and 80,95 for the exiting learning class.
Keywords: psychomotor performance assesment, scientific approach, authentic assesmen
