The study aims to explain the moderation of 3D simulator Shielded Metal Arc Welding (SMAW) welding animation in the relationship between concept understanding and student psychomotor learning outcomes. The correlation research method and research design used is the Spearman Correlation to measure the strength and direction of the relationship between two variables. This research data was collected by conducting a survey through filling out questionnaire instruments independently to 130 students and the data analysis technique used in this study was Moderated Regression Analysis (MRA). The results showed the sig value of the moderation variable 0.163 and the interaction variable 0.004, so it can be decided if the moderation variable has an insignificant effect, while the interaction variable has a significant effect, based on these results the type of moderation provided by the 3D SMAW welding simulator is absolute moderation. The conclusion of the research shows that the 3D simulator of SMAW welding animation moderates the relationship between concept understanding and student psychomotor learning outcomes with the type of absolute moderation. © 2025 Yunus Yunus et al.; published by UIKTEN. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 License.
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