Numeracy literacy is one of the essential competencies students need to develop to face future challenges. This research investigates the relationship between numeracy literacy and academic achievement, self-efficacy and academic achievement, as well as the combined influence of numeracy literacy and self-efficacy on eighth-grade students' learning outcomes. Using a quantitative correlational design, the study involved 198 students from a total population of 414 at SMPN 4 Tanjungpinang, selected via stratified random sampling. Data analysis employed Pearson’s product-moment correlation for both simple and multiple correlation tests. The research tools included a numeracy literacy test, a self-efficacy questionnaire, and science performance documentation. The results showed a moderate positive link between numeracy literacy and academic performance (r = 0.482). A very strong correlation was found between self-efficacy and performance (r = 0.915). Moreover, the combined relationship between numeracy literacy and self-efficacy in relation to learning outcomes was also very strong (r = 0.957). These results highlight the need to enhance numeracy skills in schools by applying effective teaching strategies.
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