INOVASI PENGEMBANGAN E-LKPD MENGGUNAKAN RASCH MODEL UNTUK MENGUKUR KEMAMPUAN CRITICAL THINKING SISWA KELAS X TKRO SMKN 7 SURABAYA

Authors

Akhmad Gunawan Universitas Negeri Surabaya
Rachmad Syarifudin Hidayatullah Universitas Negeri Surabaya

Keywords:

e-LKPD, Pengembangan, Critical Thinking, Rasch Model

Abstract

This study aimed to determine the feasibility of e-LKPD questions with critical thinking indicators on automotive components and the workings of internal combustion engines (2-stroke and 4-stroke) to produce an instrument to measure students' critical thinking. This developmental research was conducted using the 4D method (Define, Design, Develop, and Disseminate). The questions developed consisted of 25 multiple-choice video-audio-based items to test students' knowledge and analytical skills on automotive components and the workings of internal combustion engines. The research sample was selected using a purposive sampling technique, with 35 TKRO students at SMKN 7 Surabaya. The results showed that the items in the e-LKPD were declared valid by expert judgment with an average of 3.80. The Rasch model yielded a person reliability of 0.76, an item reliability of 0.90, and a Cronbach's Alpha (K-20) of 0.78.. Therefore, it can be concluded that e-LKPD is suitable for measuring students' critical thinking.

Keywords: e-LKPD, development, critical thinking, rasch model

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