Rasch Analysis of a Cultural Heritage-Based Critical Thinking Instrument: A Case Study at SMAN 1 Semarang

DOI

10.2991/978-2-38476-543-0_12How to use a DOI?

Keywords

Critical Thinking; Cultural Heritage; Rasch Model

Abstract

This study aimed to evaluate cultural heritage-based critical thinking test items administered at SMAN 1 Semarang using the Ministep software within the framework of modern test theory, specifically the Rasch model. The participants consisted of seventy Grade XI students who had previously learned trigonometric comparison concepts. The instrument comprised twenty Ennis-based critical thinking items representing six indicators: focus, reason, inference, situation, clarity, and overview, with contextual elements derived from the cultural heritage sites and architectural features surrounding SMAN 1 Semarang. The Rasch analysis produced strong psychometric results, with a Cronbach’s Alpha of 0.91, an item reliability of 0.93, and a person reliability of 0.91. Except for two invalid items (4c and 4d), the remaining items met the required validity criteria. The item difficulty distribution was balanced 30% difficult, 45% moderate, 15% easy, and 10% very easy. The instrument demonstrated good discriminative power, indicated by an item separation index of 3.69 (H = 5) and a person separation index of 3.16 (H = 5). The unidimensionality test showed an explained variance of 43.7%, exceeding the minimum threshold of 20%, indicating that the instrument is psychometrically sound and suitable for assessing critical thinking skills within a cultural heritage-based context.

Copyright

© 2026 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Ida Dwijayanti
AU  - Aryo Andri Nugroho
AU  - Dhidik Joko Purnomo
PY  - 2026
DA  - 2026/02/26
TI  - Rasch Analysis of a Cultural Heritage-Based Critical Thinking Instrument: A Case Study at SMAN 1 Semarang
BT  - Proceedings of the 8th International Conference on Education and Social Science Research (ICESRE 2025)
PB  - Atlantis Press
SP  - 118
EP  - 129
SN  - 2352-5398
UR  - https://doi.org/10.2991/978-2-38476-543-0_12
DO  - 10.2991/978-2-38476-543-0_12
ID  - Dwijayanti2026
ER  -