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All Journal Momentum: Physics Education Journal
Sutopo Sutopo
Universitas Negeri Malang, Indonesia
Physics

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Distance and displacement inventory: Construction, validation and structural analysis Akhmad Jufriadi; Sutopo Sutopo; Sentot Kusairi; Sunaryono Sunaryono; Dina Asmaul Chusniyah; Hena Dian Ayu
Momentum: Physics Education Journal Vol. 8 No. 2 (2024)
Publisher : Universitas PGRI Kanjuruhan Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21067/mpej.v8i2.9851

Abstract

This research aims to develop an instrument for assessing understanding distance and displacement concepts. Distance and Displacement Inventory (DDI) is an instrument constructed in multi-representations, including picture, table, graphic, mathematical, and verbal representations. This instrument is in multiple-choice format with ten questions to assess students' understanding of distance traveled and displacement. DDI development refers to R&D design by Borg&Gall and test development flowchart by Beichner. DDI was applied to 357 students in Indonesia who had taken introductory physics courses. Student answers were analyzed to determine the DDI's psychometric properties and structural analysis. The analysis results show that the DDI is adequate for assessing students' understanding of travel distance and displacement concepts. Meanwhile, the structural analysis of students' knowledge results shows that students have different perceptions of each question item according to their representation. Furthermore, students who understand the concept of distance traveled and displacement in one representation may need help understanding it correctly in another representation. This research implies the necessity of designing learning designs based on multi-representations and teaching students about the changes between these representations.
Practice rehearsal pairs with dynamic video media: Improving students' kinematics graph interpretation skills Luluk Hariroh; Arif Hidayat; Sutopo Sutopo; Endang Purwaningsih
Momentum: Physics Education Journal Vol. 8 No. 2 (2024)
Publisher : Universitas PGRI Kanjuruhan Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21067/mpej.v8i2.9895

Abstract

This study aims to examine the impact of Practice Rehearsal Pairs (PRPs) with Dynamic Video Media (DVM) on improving students' skills to interpret kinematics graphs in Physics subjects among junior high school students in Malang. This research is descriptive with a quantitative approach. Data collection was conducted through tests, observations with open questionnaires to three classes totaling 77 eighth-grade students in Malang City. Semi-structured interview participant selection was carried out to obtain detailed and in-depth answers from the students' perspectives. The instrument used to explore kinematics graph interpretation abilities consisted of 10 kinematics graph questions taken from The Test of Understanding Graphs in Kinematics (TUG-K). The research results show that eighth-grade junior high school students in Malang have a low ability to interpret kinematics graphs, with an average initial exploration ability score of 54.6. The difficulties experienced by students include reading graphs through slope/gradient, area under the graph, and direct graph reading. The PRPs learning model with DVM can improve the ability to interpret kinematics graphs of junior high school students. In the three experimental classes, there was an increase in initial exploration ability scores and final ability test scores. The non-parametric test results using the Wilcoxon Signed Rank Test show that all three classes have a Sig. (2-tailed) value of 0.000 < 0.05, thus it can be concluded that there is a significant difference between the initial and final abilities of students in the experimental classes before and after the implementation of PRPs and the use of DVM. This indicates that the PRPs learning model with DVM can improve the ability to interpret kinematics graphs of junior high school students.
Co-Authors Akhmad Jufriadi Arif Hidayat Dina Asmaul Chusniyah Endang Purwaningsih Hena Dian Ayu Luluk Hariroh Sentot Kusairi Sunaryono Sunaryono