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All Journal M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Pattimura Proceeding : Conference of Science and Technology
Vebiyanti, Dewi
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Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Energy Engineering Materials Science & Nanotechnology Mathematics Physics

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Students Mathematical Critical Thinking Skills: Validity and Reliability with Winsteps and SPSS Vebiyanti, Dewi; Salsabila, Khalisha; Bilhaki, Raden Roafli; Faradhilla, Ayu; Alyani, Fitri
Pattimura Proceeding Vol 5 No 1 (2024): Prosiding Konferensi Nasional matematika (KNM) XXII Tahun 2024
Publisher : Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ppcst.knmxxiiv5i1p79-88

Abstract

It is of great importance to conduct validity and reliability testing in a study in order to ascertain the feasibility and effectiveness of the instruments employed. In this study, an analysis is required to ascertain the results of the validity and reliability tests on mathematical critical thinking skills utilising the SPSS and Winsteps applications. The research method employed was quantitative survey research, with a total of 133 high school students in the Jakarta and Depok areas comprising the sample population. The instrument designed to assess critical thinking skills comprises four indicators. The validity test on the mathematical critical thinking ability instrument with the SPSS application indicates that one value (value 11) is invalid, as evidenced by the Pearson correlation value. However, the remaining values meet the requirements for validity. The reliability value obtained through SPSS yielded a result of α = 0.75. The same results are observed when the Winsteps application is employed. One value (value 11) is identified as invalid, while the remaining values meet the criteria for the MNSQ outfit value, ZSTD outfit, and PTMEA-CORR. In addition, the reliability results obtained using Winsteps yielded a Cronbach's Alpha coefficient value of 0.87, indicating a high degree of reliability.
Flipbooks' Support Of Problem-Based Learning and Its Impact On Critical Thinking Ability Vebiyanti, Dewi; Miatun, Asih
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 10 No. 2 (2025): Mathline : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v10i2.953

Abstract

Mathematics teaching needs to be carefully designed to promote complex cognitive skills, especially critical thinking skills, as an essential competence. However, the lecture and question-and-answer models that are still widely used are often unable to develop these skills optimally. This circumstance highlights the need for innovative learning models that actively engage students and utilize technology, in line with the Merdeka curriculum. The purpose of this study is to investigate the effectiveness of the flipbook-based model of PBL in improving students' mathematical critical thinking skills. Flipbooks in PBL provide a contextualized, visual, and student-centered approach that encourages collaboration, exploration, and reflection. The results of the Mann-Whitney hypothesis tests, as the data were not normally distributed and did not meet the requirements for a t-test, showed that students in the flipbook-based PBL group achieved a higher mean score than the lecture and question-answer model groups. The effect size (d) value of 1.01 is in the high category, indicating that this model has a positive impact on improving critical mathematical thinking skills and supports contextualized and collaborative learning.
Co-Authors Asih Miatun Bilhaki, Raden Roafli Faradhilla, Ayu Fitri Alyani Salsabila, Khalisha