Indirect aggression has been associated with antisocial personality traits like Machiavellianism, but there is a lack of evidence on their longitudinal development across adolescence. Therefore, the joint developmental trajectories of adolescent indirect aggression and Machiavellianism across 3 years of high school (Grades 10 to 12) were…

This study was conducted at a college in Ontario with a sample of students from the Game Development program for 5 intake years: 2014-2018, with the purpose of determining the validity of the Mathematics Diagnostic Test used to place 1st semester college students directly into an advanced math course (Math 10), or to leave them in the introductory…

Immigrant and refugee children and adolescents form a growing socially, culturally, and economically diverse group with the potential for wide-ranging adaptation outcomes. The goal of the study was to examine whether developmental competencies (social-emotional and academic) and sociodemographic disparities (e.g., SES and migration class)…

This 2-year prospective study aimed to examine the predictive role of students' achievement goals (mastery-approach and performance-avoidance) on socioemotional adjustment in high school by assessing the potential mediating contribution of academic motivations. A total of 407 high school students (46% boys) were surveyed each year in Secondary 2…

We examined the impact of adolescents' popularity motivations on their involvement in relational aggression perpetration and victimization, heavy drinking, and antiauthority behavior, while also considering the role of teens' perception of their own popularity and psychosocial adjustment. High school students (N = 986; 50% female; M[subscript age]…

In Canada, about 6% of 15-year-olds attend a private school. Although some provincial governments subsidize a portion of the costs, parents must still pay for their child to attend. Differences in the academic outcomes of children who attend public and private schools continue to attract public attention. A central issue is the extent to which…

In this paper we present standardized measures of tenth grade students' knowledge, attitudes and behaviours concerning sustainable development as those concepts are understood in the United Nations Educational, Scientific and Cultural Organization, and we test the hypothesis that knowledge and favourable attitudes toward SD lead to favourable…

This study examined factors related to reading comprehension in adolescents who spoke English as a first language (L1) and English as a second language (L2). Measures of decoding, vocabulary knowledge, and reading comprehension were administered to 31 L1 and 44 L2 speakers. English L2 adolescents scored significantly lower than their L1 peers on…

Increasing dropout rates in senior high school physical education, particularly among females, and unhealthy activity and obesity levels in youth have led to recommendations to assess potential contributing factors in physical education participation. Drawing from gender, body image, and social-cognitive theory, this study investigated relations…

Results from the Ontario Secondary School Literacy Test (OSSLT) indicate that English as a Second Language (ESL) and English Literacy Development (ELD) students have comparatively low success and high deferral rates. This study examined the 2002 and 2003 OSSLT test performances of ESL/ELD and non-ESL/ELD students in order to identify and…

A study was undertaken to determine aspects of gender-related differences in mathematics achievement among 10th graders (n=253). More specifically, the following aspects were assessed: (1) gender-related differences and similarities on specific process-, content-, and micro-component aspects; (2) stability of the patterns of differences and…