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All Journal JP2M (Jurnal Pendidikan dan Pembelajaran Matematika) Kognitif: Jurnal Riset HOTS Pendidikan Matematika
Hutagalung, Lastri
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Computer Science & IT Education Library & Information Science Mathematics Social Sciences Other

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Psychometric Validity Analysis of Logical–Mathematical Intelligence Hutagalung, Lastri; Rahayu, Wardani; Hidayat, Flavia Aurelia
Kognitif: Jurnal Riset HOTS Pendidikan Matematika Vol. 5 No. 4 (2025): October - December 2025
Publisher : Education and Talent Development Center Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/kognitif.v5i4.2596

Abstract

This study is a validation and instrument-development research whose primary goal is to examine and ensure the psychometric quality of a Logical–Mathematical Intelligence (LMI) questionnaire for Senior High School students. LMI, as a fundamental aspect of scientific reasoning, requires a well-established measurement tool. The adapted instrument consists of 24 items using a five-point Likert scale and was constructed based on Gardner’s five core LMI dimensions (numerical ability, logical reasoning, problem solving, pattern recognition, and deductive/inductive thinking). Data were collected online from 317 high school students through convenience sampling. Analysis was performed using the Rasch Model (Winsteps 3.73). The results indicate that the instrument demonstrates adequate unidimensionality (raw variance explained 33.3%) and excellent reliability (Cronbach’s Alpha 0.89; Item Reliability 0.96). All items were found to be fit and functioning properly, with strong discriminative power (Item Separation 4.98), indicating that the instrument can classify item difficulty into seven distinct levels. These findings explicitly confirm that the adapted LMI questionnaire meets international psychometric standards and is valid for mapping the logical–mathematical reasoning abilities of high school students.
KEMAMPUAN BERPIKIR KRITIS SISWA SMP DALAM MENYELESAIKAN SOAL HOTS MATEMATIKA Hutagalung, Lastri; Meiliasari, Meiliasari
JP2M (Jurnal Pendidikan dan Pembelajaran Matematika) Vol 11, No 2 (2025)
Publisher : Universitas Bhinneka PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29100/jp2m.v11i2.7914

Abstract

Kemampuan berpikir kritis adalah kompetensi esensial bagi siswa dalam menghadapi tantangan abad ke-21. Namun, hasil PISA 2018 menunjukkan rendahnya kemampuan berpikir kritis siswa di Indonesia, khususnya dalam matematika, yang berdampak pada pencapaian hasil belajar di bawah Kriteria Ketuntasan Minimal (KKM). Penelitian ini bertujuan untuk menganalisis tingkat kemampuan berpikir kritis siswa dan faktor-faktor yang memengaruhinya. Dengan menerapkan metode Systematic Literature Review (SLR), studi ini mengkaji literatur relevan untuk mendefinisikan berpikir kritis matematis, mengidentifikasi indikator pengukurannya, serta merumuskan upaya peningkatan kemampuan tersebut. Diharapkan, temuan penelitian ini dapat memberikan rekomendasi pembelajaran yang lebih efektif untuk mengembangkan kemampuan berpikir kritis siswa. 
Co-Authors Hidayat, Flavia Aurelia Meiliasari Wardani Rahayu