The Impact of DMR Implementation on Students' Mathematical Problem-Solving Ability and Self-Efficacy

Abstract

Background of study: Mathematical problem-solving skills and self-efficacy are crucial components in mathematics learning. Low levels of these two skills can cause students to struggle with non-routine problems.

Aims and scope of paper: To determine the impact of implementing the Multi-Representation Discourse (DMR) model on students' mathematical problem-solving abilities and self-efficacy.

Methods: This quasi-experimental study employed a posttest-only control group design. The population included all eighth-grade junior high school students in Bandar Lampung City in the 2024/2025 academic year. The sampling technique used was cluster random sampling, with 50 students as respondents. The hypothesis test used was MANOVA.

Result: The DMR model significantly influenced students' mathematical problem-solving abilities and self-efficacy. Students in the experimental class showed higher scores than those in the control class.

Conclusion: The DMR learning model effectively improves students' mathematical problem-solving abilities and self-efficacy.