Penelitian ini bertujuan untuk mengetahui: 1) Pengaruh disiplin belajar terhadap hasil belajar matematika siswa kelas IX SMP Muhammadiyah 1 Tarakan; 2) Pengaruh sikap belajar terhadap hasil belajar matematika siswa kelas IX SMP Muhammadiyah 1 Tarakan; dan 3) Pengaruh disiplin belajar dan sikap belajar secara simultan terhadap hasil belajar matematika siswa kelas IX SMP Muhammadiyah 1 Tarakan. Jenis penelitian ini adalah penelitian kuantitatif dengan metode survey. Penelitian ini dilakukan pada semester ganjil tahun ajaran 2020/2021. Populasi penelitian ini adalah siswa kelas IX yang terdiri dari 1 kelas. Sampel dalam penelitian ini berjumlah 26 siswa diambil dengan menggunakan teknik sampling jenuh. Adapun teknik pengumpulan data dalam penelitian ini adalah menggunakan angket dan dokumentasi. Teknik analisis data menggunakan analisis deskriptif dan analisis regresi linear sederhana dan regresi linear berganda. Hasil penelitian menunjukkan bahwa dengan analisis regresi linear sederhana menunjukkan terdapat pengaruh disiplin belajar terhadap hasil belajar matematika siswa dengan persamaan regresi ? = 9,872 + 0,756 X1. Pengaruh sikap belajar terhadap hasil belajar matematika siswa dengan persamaan regresi ? = 7,029 + 0,980 X2. Hasil analisis regresi linear berganda menunjukkan terdapat pengaruh yang signifikan disiplin belajar dan sikap belajar terhadap hasil belajar matematika siswa kelas IX SMP Muhammadiyah 1 Tarakan dengan persamaan regresi ? = 0,810 + 0,401 X1 + 0,593 X2. Berdasarkan hasil perhitungan koefisien determinasi, diketahui bahwa hasil belajar matematika dipengaruhi oleh variabel disiplin belajar yaitu sebesar 72,5%, hasil belajar matematika dipengaruhi oleh variabel sikap belajar sebesar 75,5%, dan hasil belajar matematika dipengaruhi oleh variabel disiplin belajar dan sikap belajar secara simultan yaitu sebesar 84,1%.

Kata Kunci: Disiplin Belajar, Sikap Belajar, dan Hasil Belajar Matematika

This study aims to determine: 1) The effect of learning discipline on mathematics learning outcomes of grade IX students of SMP Muhammadiyah 1 Tarakan; 2) The influence of learning attitudes on mathematics learning outcomes of class IX students of SMP Muhammadiyah 1 Tarakan; and 3) The effect of learning discipline and learning attitudes simultaneously on mathematics learning outcomes of grade IX students of SMP Muhammadiyah 1 Tarakan. This type of research is a quantitative study with a survey method. This research was conducted in the odd semester of the 2020/2021 school year. The population of this study were students of class IX which consisted of 1 class. The sample in this study amounted to 26 students taken using saturated sampling technique. The data collection techniques in this study were using questionnaires and documentation. The data analysis technique used descriptive analysis and simple linear regression analysis and multiple linear regression. The results showed that the simple linear regression analysis showed that there was an effect of learning discipline on students' mathematics learning outcomes with the regression equation ? = 9.872 + 0.756 X1. The effect of learning attitudes on student mathematics learning outcomes with the regression equation ? = 7.029 + 0.980 X2. The results of multiple linear regression analysis show that there is a significant influence on learning discipline and learning attitudes on mathematics learning outcomes of class IX students of SMP Muhammadiyah 1 Tarakan with the regression equation ? = 0.810 + 0.401 X1 + 0.593 X2. Based on the calculation of the coefficient of determination, it is known that mathematics learning outcomes are influenced by the learning discipline variable, namely 72.5%, mathematics learning outcomes are influenced by the learning attitude variable by 75.5%, and mathematics learning outcomes are influenced by the learning discipline variables and learning attitudes simultaneous amounting to 84.1%. Keywords: Learning Discipline, Learning Attitudes, and Mathematics Learning Outcomes