Problem: The pronounced effect of conscientiousness aligns with previous meta-analytic research, identifying it as the most reliable predictor of academic achievement within the Big Five personality framework. This trait shows a strong positive correlation with GPA (r = .76) (Bergold & Steinmayr, 2018; Rosander et al., 2011). consistent with earlier meta-analyses identifying it as the most reliable personality predictor of AP (Meyer et al., 2023). Need Assignment Help?