Article Per Year (5 Year)
p-Index From 2020 - 2025
1.325
P-Index
This Author published in this journals
All Journal Jurnal Pendidikan Anak Usia Dini Undiksha JURNAL MITRA SWARA GANESHA Jurnal Elemen Jurnal Bina Ummat: Membina dan Membentengi Ummat Educivilia: Jurnal Pengabdian Pada Masyarakat JURNAL ILMIAH MITRA SWARA GANESHA: PENELITIAN PENDIDIKAN DAN PENGAJARAN
Giyanti
Unknown Affiliation
Religion Arts Humanities Education Environmental Science Languange, Linguistic, Communication & Media Social Sciences Other

Published : 6 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search
Journal : Jurnal Elemen

 1 
Integration of item response theory in the development of PhET-based graphing lines worksheets for optimizing student algebra competence Giyanti; Lestari, Indri; Oktaviyanthi, Rina
Jurnal Elemen Vol 11 No 1 (2025): January
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v11i1.27634

Abstract

This study develops and evaluates a graphing line worksheet based on PhET Interactive Simulation integrated with Item Response Theory (IRT) methods to enhance student algebra competence. Involving 120 students, the worksheet comprises 12 items measuring four key indicators: understanding the geometric significance of line slopes, constructing line equations, graphing from line equations, and predicting the effects of variable changes. The 2-Parameter Logistic (2PL) model of IRT was employed to analyze item difficulty and student ability in logit form. The results indicate that the worksheet is effective in improving student algebra competence, with Items 1 and 11 demonstrating a good balance between difficulty and discrimination. Item 2 requires further review because of its high difficulty, whereas Item 12 is considered too easy. Heatmap analysis and Item Characteristic Curves (ICC) revealed variations in student response patterns, confirming the test's ability to evaluate diverse levels of student ability. The integration of interactive simulation and IRT has proven to be an effective strategy in instructional design, supporting adaptive and personalized learning.
Co-Authors Afifah, Retno Nur ANAM, AHMAD MISBAHUL Chatarina Umbul Wahyuni Fitriyani, Mia Lestari, Indri Nurjiyanti, Idah Rastuti Nur Rohmawati, Erry Rina Oktaviyanthi, Rina Septi Imani, Wildani Tb. Sofwan Hadi Usep Sholahudin Wulandari, Riya Ayu Dewi Yani Supriani