RASCH MODELLING TO EVALUATE REASONING DIFFICULTIES, CHANGES OF RESPONSES, AND ITEM MISCONCEPTION PATTERN OF HYDROLYSIS

Laliyo, L. A. R.; La Kilo, A; Mardjan Paputungan; Wiwin Rewini Kunusa; Lilan Dama; Citra Panigoro

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RASCH MODELLING TO EVALUATE REASONING DIFFICULTIES, CHANGES OF RESPONSES, AND ITEM MISCONCEPTION PATTERN OF HYDROLYSIS

Title	RASCH MODELLING TO EVALUATE REASONING DIFFICULTIES, CHANGES OF RESPONSES, AND ITEM MISCONCEPTION PATTERN OF HYDROLYSIS
Publication Type	Journal Article
Year of Publication	2022
Authors	Laliyo, L. A. R., La Kilo, A, Paputungan, M, Kunusa, WR, Dama, L, Panigoro, C
Journal	Journal of Baltic Science Education
Volume	21
Issue	5
Start Page	817-835
Pagination	Continuous
Date Published	October/2022
Type of Article	Original article
ISSN	1648-3898
Other Numbers	E-ISSN 2538-7138
Keywords	hydrolysis, misconception, Rasch model, reasoning difficulties
Abstract	This study evaluates the difficulties in concept reasoning, changes in response patterns, and item misconception hydrolysis patterns using Rasch modeling. Data were collected through the development of 30 distractor-based diagnostic test items, measuring ten levels of conceptual reasoning ability in three types of salt hydrolysis compounds: 〖〖Na〗_5 P〗_3 O_10, NaOCl and 〖〖(NH〗_4)〗_2 〖SO〗_4. These 30 written test items were completed by 849 students in Gorontalo, Indonesia. The findings show empirical evidence of the reliability and validity of the measurement. Further analysis found that the students’ reasoning difficulty levels of the concept of saline solutions were varied; the calculation of saline solution’s pH level is the most difficult construct to reason. In particular items, changes in response patterns were found; the misconception curve showed a declining trend and disappeared along with the increase of comprehension along the spectrum of students’ abilities. The item misconceptions pattern was found repeatedly in similar items. This finding strengthens the conclusion that resistant misconceptions potentially tend to cause students' conceptual reasoning difficulties and are difficult to diagnose in conventional ways. This study contributes to developing ways of diagnosing resistant misconceptions and being a reference for teachers and researchers in evaluating students' chemical conceptual reasoning difficulties based on Rasch modeling.
URL	https://oaji.net/articles/2022/987-1667236909.pdf
DOI	10.33225/jbse/22.21.817
Refereed Designation	Refereed
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