Independent Samples t Test and the Mann-Whitney-Wilcoxon Test to Know the Effect of the Drill Method on Mathematics Learning Outcomes

Abstract

This study aims to analyze the effect of the drill method on the mathematics learning outcomes of seventh-grade students at SMP Negeri 5 Jombang. The pre-test results were tested for normality using the Shapiro-Wilk test and for homogeneity using the Bartlett test. The pre-test results showed the data were normally distributed and homogeneous. The t-test indicated that the pre-test mean scores between the control and experimental classes were the same. However, the post-test data for the experimental class were not normally distributed, so homogeneity was tested using the Levene test. The Mann-Whitney test showed a significant difference, proving that the drill method affects students’ learning outcomes.

Keywords

independent samples t test / Mann-Whitney-Wilcoxon test / the drill method / mathematics learning outcomes / State Junior High School 5 Jombang

Author Contributions

All authors contributed to the design of the study. The first author (N.) was responsible for the statistics-related content, while the second author (L.B.T.) was responsible for the education-related content. Both authors wrote the first draft, and the first author checked the final versions. All authors have read and agreed to the published version of the manuscript.

Funding

This research received no external funding.

Institutional Review Board Statement

The study was conducted according to the guidelines of the University of PGRI Jombang, and approved by the Ethics Committee (number 014/TKIA/KL/2024 and it was approved on 4 October 2024).

Informed Consent Statement

Informed consent was obtained from the parents of all subjects in this study

Data Availability Statement

The data used in this study was secondary data obtained by Rahayu [32] during her study for Bachelor’s degree under the supervision of Nurwiani. However, the authors employed different analysis methods to Rahayu.

Conflicts of Interest

The authors have no conflicts of interest to declare.

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