Recent studies in educational psychology highlight the role of motivational variables such as trait-like perseverance. Studies have linked such variables (e.g., grit and mindset) to academic performance. However, research has reported inconsistent findings in explaining academic achievement differences. Drawing from a sample of pre-university students (N = 309), the present study assesses the efficacy of both grit and mindset in predicting academic achievement. The results suggest that neither grit, nor mindset was predictive of academic achievement. These findings have significant theoretical and practical implications.