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All Journal Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) Jurnal Pendidikan dan Pembelajaran Kimia (JPPK)
Ayi Darmana
Medan State University
Education

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Analysis of Rasch Model for the Validation of Chemistry National Exam Instruments Ayi Darmana; Ani Sutiani; Haqqi Annazili Nasution; Ismanisa Ismanisa*; Nurhaswinda Nurhaswinda
Jurnal Pendidikan Sains Indonesia Vol 9, No 3 (2021): JULY 2021
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (417.46 KB) | DOI: 10.24815/jpsi.v9i3.19618

Abstract

Information about score obtained from a test is often interpreted as an indicator of the student's ability level. This is one of the weaknesses of classical analysis that are unable to provide meaningful and fair information. The acquisition of the same score if it comes from a test item with a different level of difficulty, must show different abilities. Analysis of the Rasch model will overcome this weakness. The purpose of this study was to analyze the quality of the items by validating the national chemistry exam instrument using the Rasch model. The research sample was 212 new students of the Department of Chemistry at the State University of Medan. The data collected was in the form of respondent's answer data to the 2013 chemistry UN questions, which amounted to 40 items multiple choice and uses the documentation method. Data analysis technique used the Rasch Model with Ministep software. The results of the analysis show the quality of the Chemistry National Exam (UN) questions is categorized as very good based on the following aspects: unidimension, item fit test, person map item, difficulty test level, person and item reliability. There is one item found to be gender bias, in which men benefit more than women. The average chemistry ability of respondents is above the average level of difficulty of the test items
Implementation of Chemistry Teaching Material Integrated with Spiritual Values Using the Problem Based Learning Model to Improve Learning Outcomes Reviewed from Learning Motivation Shelly Aulia; Ayi Darmana
Jurnal Pendidikan dan Pembelajaran Kimia Vol. 14 No. 2 (2025): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

Implementation of Chemistry Teaching Material Integrated with Spiritual Values ​​Using the Problem Based Learning Model to Improve Student Learning Outcomes Reviewed from Learning Motivation. This study aims to investigate the significant influence of chemistry teaching materials based on spiritual values on student learning outcomes, reviewed from student learning motivation using the Problem-Based Learning (PBL) model. A quantitative approach with a quasi-experimental design was employed. The sample consisted of two randomly selected groups of Grade XI students: the experimental group (Class XI-1), which received instruction using spiritual value-based materials integrated with the PBL model, and the control group (Class XI-3), which used conventional materials. Data were collected through posttests to assess learning outcomes and questionnaires to measure learning motivation. Data analysis included normality, homogeneity tests, and a two-way ANOVA. The results showed that the experimental group achieved a higher average posttest score (77.0) compared to the control group (71.89), indicating improved learning outcomes. The two-way ANOVA revealed a significant effect of learning motivation on learning outcomes (p = 0.000 < 0.05), as well as a significant interaction between spiritual value-based teaching materials and motivation (p = 0.03 < 0.05). These findings suggest that the integration of spiritual values in chemistry teaching materials, when combined with the PBL model, positively and significantly enhances student learning outcomes, especially when students are highly motivated to learn.
Co-Authors Ani Sutiani Haqqi Annazili Nasution Haqqi Annazili Nasution Ismanisa Ismanisa* Nurhaswinda Shelly Aulia