Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Iqbal Sudrajat
Universitas Muhammadiyah Purworejo
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Korelasi Antara Kedisiplinan dengan Prestasi Belajar Siswa Kompetensi Keahlian Teknik Kendaraan Ringan SMK Muhammadiyah Lemahabang Cirebon Tahun Pelajaran 2025/2026 Ara Decara; Dwi Jatmoko; Aci Primartadi; Anggita Supriyani; Iqbal Sudrajat
Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Vol. 4 No. 4 (2026): Juli : Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informat
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jupiter.v4i4.1607

Abstract

Discipline is a crucial aspect that supports the success of the learning process, particularly in vocational education, which demands a balance between academic ability, practical skills, and work attitude. In the Light Vehicle Engineering (TKR) Competency program, students are not only required to understand the learning material, but also to adhere to regulations, be responsible in completing assignments, and implement Occupational Safety and Health (K3) procedures. This study aims to determine the level of discipline, academic achievement, and the relationship between discipline and academic achievement of students in the Light Vehicle Engineering (TKR) Competency program at SMK Muhammadiyah Lemahabang, Cirebon Regency. This study used a quantitative approach with a correlational approach. The study population consisted of 35 students of grade XI TKR 6, and the entire population was used as a sample using a saturated sampling technique. Data were obtained through a discipline questionnaire and documentation of student academic achievement scores. Data analysis was conducted using descriptive statistics, prerequisite analysis tests, Pearson Product Moment correlation, and the coefficient of determination using IBM SPSS Statistics. The results of the study indicate that student discipline is in the good category with an average score of 112.34, while student academic achievement is in the good category with an average score of 83.74. The correlation test results show a correlation coefficient of 0.941 with a significance level of 0.000, and a coefficient of determination of 0.885. These results indicate a positive and significant relationship between discipline and student academic achievement, with discipline contributing 88.5% to academic achievement.
Pengaruh Metode Demonstrasi untuk Meningkatkan Hasil Belajar pada Materi Sistem Rem di SMK Muhammadiyah Lemahabang Dwi Jatmoko; Aci Primartadi; Anggita supriyani; Iqbal Sudrajat
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 4 No. 3 (2026): Juni: Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v4i3.1597

Abstract

This study was motivated by the need to improve students’ learning outcomes in disc brake system material, which requires an integrated understanding of theoretical concepts and practical skills. The demonstration method provides students with concrete learning experiences through direct observation of components, working principles, and disc brake system inspection procedures. This study aimed to determine the improvement in learning outcomes among students taught using the demonstration method and conventional learning and to examine differences in learning outcome improvement between the two groups. A quantitative approach with a quasi-experimental method and a nonequivalent control group design was employed. The study involved 72 students in Grade XI of the Light Vehicle Engineering program at SMK Muhammadiyah Lemahabang in the 2025/2026 academic year, consisting of 36 students in the experimental class and 36 students in the control class. Data were collected through tests, observation, and documentation and analyzed using validity, reliability, normality, homogeneity, paired-sample t-test, independent-sample t-test, and N-Gain analysis. The results showed a significant improvement in the experimental class (p < 0.05), with an average N-Gain of 75.3266%, categorized as effective, compared with 37.9182% in the control class, categorized as less effective. The independent-sample t-test also indicated a significant difference between the two groups (p < 0.05). These findings demonstrate that the demonstration method is more effective than conventional learning in improving students’ learning outcomes in disc brake system material.
Co-Authors Aci Primartadi Anggita Supriyani Ara Decara Dwi Jatmoko