Anonymous questionnaires are frequently used in research with adolescents in order to obtain sincere answers about sensitive topics. Most longitudinal studies include self-generated identification codes (SGICs) to match information. Typical elements include a combination of letters and digits from personal data. However, these data may make the…

The aim of the study was to explore same-sex and opposite-sex friendship functions among 12 to 13- and 16 to 17-year-old Hungarian adolescents (n = 304). To explore perceptions of friendship functions, the McGill Friendship Questionnaire (MFQ, 30 items, 6 factors: stimulating companionship, help, intimacy, reliable alliance, self-validation,…

Background: Based on Mayer and Salovey's model of emotional intelligence, this study examined whether perceived stress mediates the interplay of emotional intelligence and life satisfaction for girls and boys during early and middle adolescence. Methods: Using multigroup structural equation modeling with questionnaire data from a sample of Spanish…

The objective of this research was to find out whether the implementation of mobile learning pedagogies in a high school classroom can educate high school students to become independent learners, who are able to regulate their learning, improve their achievements. The findings have been analyzed by taking into consideration the self-regulation…

For many African Americans, racial identity is an important aspect of their individual identity. We explored developmental change and stability of individual differences in the racial centrality of African American youths and their mothers as well as the relation between maternal and child racial centrality across time. African American youths (N…

Scholars have differentiated other-oriented (OO) purpose (i.e., a personally meaningful life aim intended to contribute to the world beyond the self) and self-oriented (SO) purpose (i.e., a personally meaningful life aim without intention to contribute beyond the self). OO purpose is associated with adolescent thriving, yet little is known about…

This study investigated one-semester outdoor education program impact on adolescents' perceived self-authorship--the ability to form our identity independently from the expectations of external individuals and the capacity to invent our beliefs, identity, and relationships (Baxter Magolda, 1998; Kegan, 1982)--as measured by the Self-Authorship…

This study sought to develop a short version of the ADSI, and investigate its psychometric properties. Methods: This is a secondary analysis. Analysis to determine the Cronbach's Alpha, correlations to determine concurrent criterion validity and known instrument validity and a logistic regression to determine predictive validity were conducted.…

Background: In spite of considerable advancements in our understanding of the different factors involved in achieving vocabulary-learning success, the overall pattern and interrelationships of critical factors involved in L2 vocabulary learning--particularly, the mechanisms through which learners regulate their motivation and learning…

Longitudinal studies on adolescents' enjoyment in physical education (PE) are lacking. This study examined students' self-reported enjoyment and predictors of enjoyment in PE in school among students from age 14 to 19, using questionnaires and interviews. From the results, enjoyment in PE increases among girls during high school, while students…

Control-value theory (CVT) proposes a framework for the structure of the relationships between the various predictors of achievement-related emotions, particularly anxiety. Despite existing evidence for the role of anxiety predictors, research has not yet justified their proposed structure. Hence, the current study validated the structure of test…

Motivating adolescents to participate in exercise and physical activity is becoming increasingly important due to a rise in obesity but can be prevented through Physical Education. A quasi-experimental design, grounded in the Self-determination theory, was utilised to assess the impact of an intervention using wrist-worn digital physical activity…

Monitoring the Future (MTF) is a long-term study of American adolescents, college students, and adult high school graduates through age 55. It has been conducted annually by the University of Michigan's Institute for Social Research since its inception in 1975 and is supported under a series of investigator-initiated, competitive research grants…

Based on notions posited by problem behavior theory, the primary goal of the current study was to examine the possibility that adolescents who engage in NSSI are not a homogeneous group but are rather divided into 2 subgroups: (a) adolescents who exclusively engage in NSSI, and (b) adolescents who are involved in NSSI alongside other problem…

This article introduces novel sensitivity-analysis procedures for investigating and reducing the bias that mischievous responders (i.e., youths who provide extreme, and potentially untruthful, responses to multiple questions) often introduce in adolescent disparity estimates based on data from self-administered questionnaires (SAQs). Mischievous…