The Development of a Two-Tier Diagnostic Test for Student Understanding of Light

Authors

  • Muhammad Nasir Universitas Sebelas Maret
  • Cari Universitas Sebelas Maret
  • Widha Sunarno Universitas Sebelas Maret
  • Fitria Rahmawati Universitas Sebelas Maret

Keywords:

diagnostic instrument, light concept, misconception, item response theory, certainty response index

Abstract

This study aimed to develop a two-tier light concept test to identify student concept understanding of light. The development of the test was carried out through the content validity, construct validity, and reliability test stages using the Item Response Theory (IRT). The sample consisted of 81 students during the second semester at five universities in Indonesia. The results showed that the instrument met the content validity and construct validity criteria as well as reliability. Efforts are needed to improve concepts in
light material.

Downloads

Download data is not yet available.

Downloads

Published

2023-03-31

Issue

Vol. 20 No. 1 (2023)

Section

Articles

License

Copyright (c) 2023 Journal of Turkish Science Education

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.