Abstrack-The aim of this research was to develop an instrument to assess student science process skills. A paper and pencil objective test that has been developed in form of Testlet and for specific chemistry content. The science process...
moreAbstrack-The aim of this research was to develop an instrument to assess student science process skills. A paper and pencil objective test that has been developed in form of Testlet and for specific chemistry content. The science process skills indicators has been discused and defined with expert jugdment using focus group discussion (FGD) technique. The indicators of science process skills are conceptual knowledge, observation, controling variable, interpreting data and making conclusions. The test consisted of 30 Testlet multiple choice items and given to 75 student of 11th grade from different senior high school. This research used 3 representative schools, that represented high, middle and low level in Surakarta. The result from the research are the total test reliability was measured at s alpha, the mean and the standard deviation for the test are 16,04 and 5,50, the average percentage correctly answered by student from high, middle and low level are 61,1%, 34,9%, and 24,9%.