Hidayat, Opik
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Finding a mathematical disposition instrument of junior high school students in Indonesia Rosid Bahar; Hidayat, Opik; Syadiah, Ainun Nurul; Sutardi, Budi
Psychology, Evaluation, and Technology in Educational Research Vol. 5 No. 2 (2023)
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/petier.v5i2.145

Abstract

The study aimed to find an instrument for measuring the mathematical disposition of junior high school students in Indonesia. The research type was research and development, which is used to develop instruments of students' mathematical disposition. Data were collected from 384 respondents, who filled out a questionnaire with a total of 7 indicators and 25 statement items. 384 responses were divided into two criteria, stage 1 and stage 2, with each test having 197 respondents. Stage 1 analysis used the Exploratory Factor Analysis (EFA) approach, while stage 2 used the Confirmatory Factor Analysis (CFA) approach. Stage 1 obtained validation of 23 items with a loading factor of more than 0.4, consisting of 1 invalid item and 1 item was not meet expectations. The results of the CFA analysis have proven that 23 items were valid with a loading factor of more than 0.4. The reliability coefficient was 0.59, with an SEM value of 3.98. In sum, this instrument has 23 statements that have fulfilled the validity and reliability of the instrument and were feasible to use.
Tinjauan Meta analisis: Apakah PBL berpengaruh terhadap kemampuan matematika siswa SMP? Bahar, Rosid; Retnawati, Heri; Hidayat, Opik; Sudarna, Nanong
Jurnal Math Educator Nusantara: Wahana Publikasi Karya Tulis Ilmiah di Bidang Pendidikan Matematika Vol 10 No 1 (2024): Jurnal Math Educator Nusantara
Publisher : Program Studi Pendidikan Matematika, Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jmen.v10i1.21324

Abstract

This research aims to measure the mathematics abilities of junior high school students using the Problem Based Learning (PBL) learning model. The research method used is descriptive quantitative using meta analysis. The research mapped was obtained from journal articles, theses, theses and dissertations published between 2010 and 2020 with the help of publish or perish software as an article collection application. The research article meta-analysis technique uses the JASP 0.14.1.0 application to further interpret the heterogeneity, aggregate, bias detection, forrest and funnel plot tests. The results of the research show that the mathematics ability of Indonesian junior high school students is 74 on a scale of 0 -100. This aggregate was obtained from heterogeneous previous research results with a high category deviation index which is possible for bias. Strengthening bias was also obtained from the Rank correlation test and Regression test for Funnel plot asymmetry ("Egger's test") which showed that the p-value <0.05 and funnel plot results which did not show that the data represented a range of mathematical ability scores. This means that data from previous research shows that Problem Based Learning is indicated to have biased data that cannot generalize the effectiveness/ineffectiveness of this learning method. Researchers should publish the results of this PBL research even if the results obtained are not as expected.