Perseverance, a measure of conscientiousness, is a valid predictor of achievement and truancy across the globe.

> 470,000). We investigated whether these relationships were linear or curvilinear in nature and assessed the utility of item-level information. After establishing partial metric invariance of the perseverance measure across various countries/regions and cultural regions, our findings unveiled that perseverance consistently predicted both math achievement and truancy, with predominantly linear associations. Notably, among the five items of the Perseverance scale, the item reflecting one's tendency to give up easily in the face of challenges emerged as the strongest and most consistent predictor of math achievement. Further, country-level correlations between perseverance and both math achievement and truancy displayed contradictory patterns compared to individual-level correlations, suggesting the presence of biasing factors in how people respond to these measures. Nonetheless, it appears reasonable to conclude that measures of Conscientiousness are pan-cultural predictors of achievement and truancy. (PsycInfo Database Record (c) 2024 APA, all rights reserved).