A Rasch Model Analysis on Junior High School Students' Scientific Reasoning Ability

A Rasch Model Analysis on Junior High School Students' Scientific Reasoning Ability

Rasch Model

Construct Validity

Test

Scientific Reasoning

Science education that emphasizes only the count is not relevant at the moment. Students must make scientific reasoning in answering the problem. This study aims to determine students' scientific reasoning abilities in light matter. The method in this research was the descriptive method by using the survey technique. The instrument used is a description test consisting of 8 items of light matter. This test was conducted on 201 students from the eighth-grade junior high school in Banjarmasin selected at random. The RASCH model is used as a processing stage of data from raw data into logit numbers that provide information related to infit, outfit and unidimensionality using a winstep program to achieve this goal, this study investigated the quality of items from Item and person measure, Item Bias, item and person reliability, and variable map. The findings show that the scientific reasoning ability of the eighth-grade students can be at a low level. So researchers should strive to improve students' scientific reasoning abilities in future research.

Wati, Mustika

Mahtari, Saiyidah

Hartini, Sri

Amelia, Heny

International Journal of Interactive Mobile Technologies (iJIM); Vol. 13 No. 07 (2019); pp. 141-149

1865-7923

International Association of Online Engineering (IAOE), Vienna, Austria

2019-07-11

Copyright (c) 2019 Saiyidah Mahtari, Mustika Wati, Sri Hartini, Heny Amelia

application/pdf

eng

info:eu-repo/semantics/article

info:eu-repo/semantics/publishedVersion

Non-refereed Article