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All Journal Jurnal Pendidikan IPA Indonesia
Lay, Y. F.
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The Predictive Effects of School Safety on Southeast Asian Grade 8 Students’ Science Achievement in TIMSS 2015 Lay, Y. F.; Ng, K. T.
Jurnal Pendidikan IPA Indonesia Vol 8, No 3 (2019): September 2019
Publisher : Program Studi Pendidikan IPA Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpii.v8i3.18898

Abstract

This research explored the predictive effects of school safety on science achievement among Southeast Asian eighth graders in TIMSS 2015. In this research, principals’ responses of School Discipline Problems Scale, teachers’ responses of Safe and Orderly School Scale, as well as students’ responses on the Student Bullying Scale were reported. The data were obtained from 9,726 Malaysian students, 6,116 Singaporean students, and 6,482 Thai students who participated in TIMSS 2015. The secondary data analysis using International Database (IDB) Analyzer revealed that principals’ reports of school discipline problems were significantly linked to Grade 8 students’ science achievement in Malaysia, Singapore, and Thailand. Science teachers’ reports of safe and orderly school were significantly linked to Singaporean eighth graders’ science achievement. Student bullying was significantly linked to Grade 8 students’ science achievement in Malaysia and Singapore. Administrators, educators, and policymakers who wish to improve students’ science achievement in TIMSS would benefit from the findings of this research that revealed research evidences on significant impact of school safety involving cybersecurity. Awareness should be raised on the need to have more precautions taken on school safety especially on cybersecurity in the advent of digital era, learning from a country with success stories on school safety and cybersecurity such as Singapore.
Examining the STEM-Science Achievement Test (SSAT) Using Rasch Dichotomous Measurement Model Jamaludin, J.; Lay, Y. F.; Khoo, C. H.; Leong, A. S. Y.
Jurnal Pendidikan IPA Indonesia Vol 10, No 4 (2021): December 2021
Publisher : Program Studi Pendidikan IPA Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpii.v10i4.29405

Abstract

The main purpose of this study is to develop a valid and reliable instrument to measure the STEM-Science achievement of primary school students in Malaysia. Six Year 4 Science topics (Scientific Skills, Life Processes of Human, Properties of Materials, Measurement, Solar System, Importance of Technologies in Life) and Six Year 5 Science topics (Rules and Regulation in Science Lab, Life Processes of Plants, Acids and alkali, Electricity, Earth and Space Science, Technology and Sustainable Life) have been included in the development of the STEM-Science Achievement Test (SSAT). 226 Year 4 and 226 Year 5 primary school students in Sabah responded to the developed instrument to test their STEM-Science knowledge. The Rasch dichotomous measurement model approach was used to evaluate the validity and reliability of the SSAT. The validity assessed the Point-Measure Correlation (PTMEA CORR), Principal Component Analysis of Residuals (PCAR), as well as Infit and Outfit Mean Squares (MNSQ). In terms of reliability, Cronbach’s alpha, item reliability, and item separation index were analysed. The analysis results revealed the presence of unidimensionality for both objective and subjective items. For objective items, the reported values for Cronbach’s Alpha are .81 and .83; item reliability are .95 and .95; item separation are 4.21 and 4.25 for Year 4 and Year 5 students, respectively. Standardised residual correlations for Year 4 and Year 5 subjective items also showed satisfactory values. The assessment using Rasch measurement model has proven that SSAT is a valid and reliable instrument to measure Malaysian primary students’ STEM-Science-related knowledge.
Co-Authors Jamaludin, J. Khoo, C. H. Leong, A. S. Y. Ng, K. T.