This large, international dataset contains survey responses from N = 12,570 students from 100 universities in 35 countries, collected in 21 languages. We measured anxieties (statistics, mathematics, test, trait, social interaction, performance, creativity, intolerance of uncertainty, and fear of negative evaluation), self-efficacy, persistence, and the cognitive reflection test, and collected demographics, previous mathematics grades, self-reported and official statistics grades, and statistics module details. Data reuse potential is broad, including testing links between anxieties and statistics/mathematics education factors, and examining instruments’ psychometric properties across different languages and contexts. Data and metadata are stored on the Open Science Framework website [https://osf.io/mhg94/].

Social media plays a central role in the daily lives of young people. However, many are at risk of experiencing a range of negative consequences associated with problematic social media use (PSMU). In this context, understanding the core psychological processes that contribute to PSMU is of critical importance for the development of preventive and intervention-based strategies aimed at promoting youth mental health. The present study aimed to examine the relationship between valued living - engaging in continuous and committed action consistent with one's chosen values- and PSMU, and to explore the serial mediating roles of trait self-control and doomscrolling in this association. The study was conducted using a cross-sectional design and included 511 university students aged between 18 and 30 years (78.5% female). Data were analyzed using Hayes’s PROCESS macro (Model 6). The findings revealed that valued living significantly predicted self-control. However, no direct effect of valued living on doomscrolling or PSMU was identified. In contrast, self-control and doomscrolling fully mediated the relationship between valued living and PSMU. These results indicate that self-control functions as a key psychological mechanism through which valued living is linked to reductions in both doomscrolling and PSMU. Accordingly, the findings suggest that interventions aimed at reducing PSMU and doomscrolling may be more effective when they target self-control capacity within a value-based framework, rather than focusing on valued living alone. Moreover, future studies should investigate the cognitive and emotional mechanisms through which valued living influences self-control, doomscrolling, and PSMU, using more comprehensive and causally oriented research designs.

Self-control was initially defined as behavioral inhibition. However, researchers have since recognized that strategies beyond behavioral inhibition are also required. This study aims to adapt the Self-Control Strategies Scale, developed to measure the broader theoretical structure of self-control beyond behavioral inhibition, into Turkish and to examine its psychometric properties. The study was conducted with 477 university students aged between 18 and 31. The confirmatory factor analysis indicates that the 33-item version of the scale shows good fit. Convergent validity analysis involved using the Multidimensional Self-Control Scale and the General Procrastination Scale. It was found that behavioral inhibition remains the strongest predictor of self-control, followed by Pre-Commitment, Reward, and Cognitive Change. General Procrastination is only predicted by Behavioral Inhibition and Pre-Commitment. Reliability analyses of the scale were conducted using McDonald’s Omega, test-retest reliability, and item-total correlations. All subscales, except for the Pre-Commitment subscale, have a reliability level above .70. In conclusion, the scale is valid and reliable for use in research conducted in Türkiye. However, the reliability level of the Pre-Commitment subscale should be considered when interpreting the results. This study also provides insights into the skills that should be acquired in self-control enhancement interventions.