Validation of Student Project Based Learning Worksheets with a Non-Parametric Statistical Approach on Greenhouse Effect Material

Abstract

So that can to produce a PjBL-based Student Worksheet with a valid and practical statistical approach to the Greenhouse Effect material in the Environmental Physics course, this research was conducted. Through the stages of planning, development procedures and Tessmer’s formative evaluation model with expert review stages in order to validate the language, content and design which is the definition of the Rowntree research model used in conducting this research. The use of the Likert scale by questionnaire techniques and walkthroughs is used to design validity data analysis for student worksheet products. As for the data analysis carried out, very valid results were obtained from a maximum score of 5 with a value of 4.3 for validation of the greenhouse effect context using a statistical approach, 4.9 for validation of working width design and 5 for linguistic validation. Tests for practical use are carried out on students. At the one-to-one evaluation stage, test results were obtained which showed the average score and for testing in small groups, it reached 93.7% and 97.5% in the very practical category.