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Dewi Iriani
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Assessing the Measurement Quality of a Model Lecturer TPACK Instrument: Evidence from Rasch Analysis Susanti, Nova; Iriani, Dewi; Aina, Mia
Educational Leadership and Management Journal Vol. 4 No. 1 (2026): Element - 2026
Publisher : FKIP Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/element.v4i1.56664

Abstract

Technological Pedagogical Content Knowledge (TPACK) is a fundamental competency for educators in integrating technology, pedagogy, and content knowledge into effective teaching practices. Ensuring the psychometric quality of TPACK instruments is therefore essential for obtaining accurate and reliable measurement results. This study aimed to evaluate the measurement quality of a TPACK instrument for model lecturers using Rasch Measurement Theory. A quantitative survey design was employed involving 32 respondents who completed a 25-item TPACK questionnaire using a four-point Likert scale. Data were analyzed using WINSTEPS to examine respondent reliability, item reliability, item fit, item difficulty, and rating scale functioning. The results indicated excellent respondent reliability (0.91) and person separation (3.24), demonstrating that the instrument effectively differentiated respondents across multiple competency levels. However, item reliability (0.45) and item separation (0.91) revealed limited variation in item difficulty. The item difficulty measures ranged from −0.68 to 1.43 logits, with PCK4 identified as the most difficult item and TK1 and TK4 as the easiest. Most items fit the Rasch model, although several items (CK1, CK2, PK3, PCK4, and TPACK1) exhibited misfit characteristics requiring revision. Rating scale analysis showed that the four-point Likert categories generally functioned as intended, but response concentrations in the upper categories suggested a potential ceiling effect and limited discrimination among higher-ability respondents. The novelty of this study lies in the comprehensive application of Rasch Measurement Theory to evaluate a TPACK instrument within a Lesson Study context. The findings provide empirical evidence for improving instrument quality through item refinement, broader difficulty calibration, and optimization of response categories. This study contributes to the development of more valid and reliable assessment tools for measuring technology integration competencies in physics education and professional development programs.
Constitutional Court Judges' Interpretation on the Limitation of Presidential and Vice-Presidential Term of Office: A Study of the Decision of the Constitutional Court Judge No. 117/PUU-XX/2022 Dewi Iriani; Muhammad Fauzan; Esti Ningrum
Proceeding International Conference Restructuring and Transforming Law Vol. 2 No. 2 (2023): Proceeding International Conference Restructuring and Transforming Law
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Purpose of the Study: This paper aims to analyze the philosophical meaning behind the Constitutional Court judges' interpretation of Decision No. 117/PUU-XX/2022 on the limitation of presidential and vice-presidential terms of office. It also aims to analyze the limitation of the presidential and vice-presidential term of office in the legal transformation and renewal in Indonesia. Methodology: This was normative research that used the qualitative method. The writer used the development law theory and judges’ interpretation and philosophical theory. Results: It was found that the Constitutional Court judges' interpretation of Decision No. 117/PUU-XX/2022 considered the grammatical interpretation, sociological interpretation, systematic interpretation, historic interpretation, comparative interpretation, and futuristic interpretation. In the legal transformation and renewal in Indonesia, the limitation of the presidential and vice-presidential term of office aims to create a checks and balances system among the state's high institutions. This limitation is already according to the 1945 Constitution. Applications of this Study: This research can motivate political parties to presidential and vice-presidential candidates that have integrity, morals, and character, as presidents and vice presidents can only serve for two periods. Thus, it is best to find the best candidates to serve the country. Novelty/Originality of this study: There has not been any previous research that analyzes Constitutional Court judges' interpretation of Decision No. 117/PUU-XX/2022 on the limitation of presidential and vice-presidential terms of office.
Enhancing Numeracy Skills through a GeoGebra-Integrated Collaborative Platform in Online Mathematics Learning Iriani, Dewi; Anwar, Khairul; Sofnidar, Sofnidar
Edumatica : Jurnal Pendidikan Matematika Vol 16 No 2 (2026): Edumatica: Jurnal Pendidikan matematika (Agustus 2026)
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/edumatica.v16i2.47333

Abstract

Online geometry instruction has been primarily conducted in the context of conventional digital platforms which emphasize content delivery rather than spatial reasoning. Recent research has been reported to demonstrate that limited visual and interactive tools constrain students' numeracy skills and engagement in online mathematics learning. Meanwhile, the present study conducted by the researchers examined the effectiveness of a GeoGebra-integrated collaborative platform in enhancing numeracy skills through structured online learning. This was a quasi-experimental study involving 64 eleventh-grade students assigned into the experimental group (n=32) and the control group (n=32). The experimental group used GeoGebra interactive applets within a three-phase collaborative framework, namely (1) Discussion, (2) Idea, and (3) Conclusion, while the control group received conventional online instruction. Data collection has been conducted through pre-post numeracy tests, systematic observations, and student questionnaires. The numeracy performance of the experimental group has been reported to be significantly higher (M=78.65, SD=9.23) compared to the control group (M=63.37, SD=10.45) with a large effect size (d=1.47, p<0.001). Student engagement has also been reported to increase by 42%, with 79.3% of students achieving collaborative consensus compared to 45.7% in the control group. However, participation patterns in the control group have been primarily characterized by progressive decline across learning phases, while the experimental group maintained balanced engagement throughout the sessions. In contrast, studies that examine how collaborative features within GeoGebra-integrated platforms influence numeracy development in synchronous online environments are still rare. The findings of this study provide educators with a replicable framework for implementing technology-enhanced collaborative learning in online mathematics instruction
Co-Authors .Muswita, Muswita Abdullah Al Mamun Affan Malik Agung Eko Budi Waspada Alidzanur, Muhammad Rifqi Alrizal , Alrizal Andana, Divina Andhita Dessy Wulansari Annisa, Elsy Anwar Mujahidin Anwar Mujahidin Arief Budiono Arif Muslim, Adji Asni Johari Aswan, Dara Mutiara Aulia Sanova Ayesha Hendriana Ngestiningrum Dani, Rahma Desi Fitria Dita Ajeng Yulianie Dwinita Larasati Elsa Sintya Marvinda Erwin Yudi Prahara Erwin Yudi Prahara, Erwin Yudi Esti Ningrum Evita Anggereini Faatinah, Tiyas Hasnaa Fahrudin, Rifqi Fathur Rahman, Muhammad Ferry Irawan Febriansyah Hakim, Zulfan Hamidah . Husni Sabil Imelda Maria Loho, Imelda Maria Indah Wiranti Ine Rachmawati Junita, Ranisa Kalila, Jasmine Alifia Kamid, Kamid Kartika, Viar Dwi Kautsar, Adam Kelik Wardiono Khairul Anwar Khairul Anwar Kusnadi Lianda Siregar Lusiana Al Vionita Mahardhika, Reffi Mahesa Rannie Mandala Putra, Galih Mardhotillah, Bunga Marisa Kurnianingsih Martha Eri Safira Martha Eri Safira Marvinda, Elsa Sintya Mia Aina MUFIDAH, LAILATUL Muhammad Fauzan Muhammad fauzan Muhammad Firdaus Mujahidawati Mujahidawati, Mujahidawati Munawaoroh, Diana Nasiatul Mutohari, A Sobi Nabila, Febriati Nana Ganda Naswir, Muhammad Natalia, Desfaur Nawahdani, Ahmad Mansur Ngestiningrum, Ayesha Hendriana Nizlel Huda Nova Susanti novferma, novferma Nurfauzan, Reza Nuryani Nuryani Parman, Suhadi Prasetiyo, Teguh Raden Mohamad Herdian Bhakti Rahmi, Annisa Elfi rarasati, niken Rika Maya Sari Rinaldi, Adam Rinaldi, Aulia Fadhilah Rizka Rohfin Andria Gestanti Rohmah Maulidia Romundza, Febbry Roseli Theis Rosyid Ridho, Muhammad Sigit Sapto Nugroho Simatupang, Gugun M Siska Diana Sari Sofnidar - Sofyan Wimbo Agung Pradnyawan Solihah, Yuni Awalaturrohmah Syaiful Taadi Taadi Tugiyo Aminoto Umam, M. Afifuddin Khotibul Uswatul Khasanah Wafdah Vivid Iziyana Wardi Syafmen Wijaya, Abdun Wiranugraha, M. Eza Zurweni Zurweni