Development of E-LKPD Based on Group Investigation Integrated with Citizen Science Project to Improve Analytical Thinking and Collaboration Abilities of Junior High School Students

This study aims to develop and evaluate the effectiveness of an E-LKPD based on group investigation integrated with a citizen science project on ecology and biodiversity material for junior high school students. The research employed a 4D development model (Define, Design, Develop, Disseminate) and was conducted at SMP Negeri 13 Semarang with a sample of 32 Grade VII students selected via cluster random sampling. Data collection methods included interviews, observations, questionnaires, and tests. Validation by material and media experts yielded Aiken's V scores of 0.89 and 0.88, indicating high validity. The readability test scored 69.90% (very good), while the field practitioner test scored 98.07% (very feasible). The effectiveness analysis using N-Gain showed an increase in students' analytical thinking skills by 66.5% and collaboration skills by 62.30%, both categorized as moderate. These findings indicate that the E-LKPD is valid, practical, and moderately effective in enhancing students’ analytical thinking and collaboration skills in science learning.