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All Journal SCHOOL EDUCATION JOURNAL PGSD FIP UNIMED REiD (Research and Evaluation in Education) Jurnal Penelitian Pendidikan IPA (JPPIPA) Pendas : Jurnah Ilmiah Pendidikan Dasar AR-RIAYAH : Jurnal Pendidikan Dasar JS (Jurnal Sekolah) Jurnal Elementaria Edukasia UPEJ : Unnes Physics Education Journal EMPATI : Jurnal Bimbingan dan Konseling
Ellianawati
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Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Social Sciences Other

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Technology-enhanced learning for statistical graph interpretation: An item response theory analysis of learning outcomes Subali, Bambang; Negoro, Ridho Adi; Ellianawati; Dwijananti, Pratiwi; Anandita, Aulia Silvina; Setyaningsih, Natalia Erna; Siswanto
REID (Research and Evaluation in Education) Vol. 11 No. 2 (2025)
Publisher : Graduate School of Universitas Negeri Yogyakarta & Himpunan Evaluasi Pendidikan Indonesia (HEPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/reid.v11i2.89666

Abstract

This study aimed to examine the effectiveness of technology-enhanced learning (TEL) in improving students’ statistical graph interpretation skills through a rigorous Item Response Theory (IRT) analysis. Employing a quasi-experimental pretest–posttest control group design, the research involved 120 undergraduate students from four classes, equally divided into experimental and control groups. The experimental groups received TEL-based instruction featuring interactive graph visualizations and automated feedback, while the control groups followed conventional lectures and exercises over seven sessions. Data were collected using a 60-item multiple-choice test covering bar charts, histograms, boxplots, and scatterplots, which was content-validated by experts and trialed for clarity, yielding high reliability (Cronbach’s α = 0.833). Construct validity was ensured through unidimensionality and invariance testing, confirmed by eigenvalue and DETECT analysis. Data analysis applied IRT to calibrate item parameters discrimination (a), difficulty (b), and guessing (c) and to estimate students’ latent abilities (θ). Model comparison identified the 3PL model as the best fit, capturing both difficulty variation and guessing behavior. Calibration results showed that most items exhibited satisfactory psychometric quality, supporting the robustness of the instrument. Findings revealed that TEL groups achieved a nearly one-logit gain in ability from pretest to posttest, significantly higher than the minimal improvement observed in the control groups, as confirmed by independent t-tests and normalized gain analysis. These results indicate that TEL substantially strengthens students’ ability to interpret statistical graphs while demonstrating the diagnostic value of IRT in evaluating both item quality and learning effectiveness.
Co-Authors Aditya Marianti Agustiana, Nina Alifia Rohmah Anandita, Aulia Silvina Arif Widiyatmoko, Arif Azzahra Fitriana, Shanas Bambang Subali Barokah Isdaryanti Budhi, Setiawan Decky Avrilianda Desi Utami Dina Larasati Dona Febri Enjelina Dwi Lestari, Fitriana Edi Waluyo Eka Mardiana Erna S, Natalia Fahrur Rozi Gilang Eko Setyo Suharjono Harianingsih Hermawan, Dennis Ihsandi, Aldi Intan Khoirun Nisa Langlang Handayani Liunima, Imberd Rionard Manfaatun Nisa Maria Ayu Puspita Muhamad Subhi Apriantoro Muhammad Habib Ramadhani muhammad Nur Ikhsan Muhammad Sholihul Huda Nailil Muna Asshalikha Nanik Wijayati Ngabiyanto Nihayati, Zaizatun Nuni Widiarti Nur'aeni, Amellia Putri Nurhalimah, Umi Prasetya Ariyani, Nila Pratiwi Dwijananti Ridho Adi Negoro Risma Ayunda Putri Rooshadiya, Fannya Nadim Setyaningsih, Natalia Erna Siswanto Sri Sumartiningsih Subali, Bambang Subali Sudarmin Suharto Linuwih Sukma, Izza Melati Taqiyyah, Syir' Anatut Utaminingsih, Esty Setyo Wahyu Lestari Wasino Yuli Kurniawati Sugiyo Pranoto, Yuli Kurniawati Sugiyo Yusof, Mohammad Mubarrak bin Mohd