Program Pascasarjana Universitas Negeri Yogyakarta
Abstract
This study aims to develop a set of instrument for the measurement of the laboratory
work ability performance on physical subjects of junior high school students to measure the
writing the report lab work‘ ability performance on physics subjects. This research was
conducted through three stages, namely: the initial instrument development, the try out, and
interpretation of the measurement result. The initial development stage included instrument
writing, reviewing and validating of the blue print of the instrument, items, and assessment
guidelines. The content validation was carried out by the measurement experts, physical
education specialists, and teachers physics through forum group discussion (FGD).The
instrument that had been validated was tried out to 54 students by involving three raters.
Interpretation of the measurement results be described using the total score as the basis for
the categorization of assessment. The results of the development a set of instrument for the
measurement of the preparation of laboratory reports ability performance on physical subjects
of junior high school students, aspects that measured include: statement of the problem,
experimental design, data collection and display, data analysis, and conclusion. The
reliability index of the instrument try out is at the exellent category of 0.858. The results of
measurement showed that the preparation lab report ability performance on physics subjects
scores are dominantly in the second and third categories out of the four categories. Thus, the
writting of lab work reports ability performance of physical subjects of junior high school
students are not satisfactory
