The Effect of Real Data-Based Statistical Learning on Critical Thinking and Regression Understanding

Rusmini Rusmini (Universitas Potensi Utama)
Yulia Fitri (University Potensi Utama)
Rizky Mazaly (University Potensi Utama)

Mosharafa: Jurnal Pendidikan Matematika
Vol. 15 No. 2 (2026): April

Abstrak Studi ini menilai pengaruh pembelajaran statistika menggunakan data aktual terhadap kemampuan berpikir kritis pemahaman konsep regresi linier berganda. Minimnya ketertarikan serta kesulitan yang dihadapi oleh mahasiswa Informatika Universitas Potensi Utama dalam memahami konsep regresi yang kerap diajarkan dengan cara yang prosedural dan kurang kontekstual. Data banjir di Medan sebagai sumber pembelajaran yang unik dan bermanfaat. Metode quasi eksperimen, rancangan pretest-posttest. Mahasiswa  dikelompokkan ke dalam kelas eksperimen dan kontrol masing-masing terdiri dari 32 orang mahasiswa. Hasil Uji t sebesar 12,99 dengan signifikansi 0,00. Instrumen penelitian meliputi tes berpikir kritis, tes pemahaman konsep regresi. Ada pengaruh  signifikan terhadap peningkatan keterampilan berpikir kritis, pemahaman konsep regresi linier berganda, mahasiswa sangat termotivasi. Pembelajaran dengan data aktual terbukti efektif dalam memperkuat pemahaman konsep regresi, serta meningkatkan kemampuan berpikir kritis dalam menganalisis data.   Abstract This study assesses the effect of learning statistics using actual data on the ability to think critically and understand the concept of multiple linear regression. The lack of interest and difficulties faced by Informatics students of Potential Utama University in understanding the concept of regression is often taught in a procedural and less contextual way. Flood data in Medan as a unique and useful source of learning. Quasi experimental method, pretest-posttest design. Students were grouped into experimental and control classes consisting of 32 students each. The t-test result was 12.99 with a significance of 0.00. The research instruments include a critical thinking test, a regression concept understanding test. There is a significant influence on the improvement of critical thinking skills, understanding the concept of multiple linear regression, students are highly motivated. Learning with actual data has been proven to be effective in strengthening the understanding of regression concepts, as well as improving critical thinking skills in analyzing data.