This study examined the diversity in feelings of loneliness among high-ability students. Individual differences (intelligence level, giftedness label, and personality) and differences in the social context (peer acceptance, peer rejection, victimization, and friendship quantity) of adolescents were considered as predictors of loneliness.…

Although personal and environmental correlates of adolescents' happiness have been found, the temporal direction of these relationships is less known. The present study explored the longitudinal and reciprocal relationships between self-esteem, school adjustment, and happiness during secondary school years in South Korea. Longitudinal data of…

The goal of this study was to explore longitudinal associations between preference for solitude (PFS) and depressive symptoms among early adolescents in mainland China, with a focus on separating between-person and within-person effects using a random intercept cross-lagged panel model (RI-CLPM). Participants were N = 1039 Chinese early…

This study aimed to examine the evolution of test anxiety during the transition to secondary school, a challenging period that includes a set of contextual factors that could potentially increase students' test anxiety. In addition, to further understand the contribution of different individual factors that might increase the susceptibility to…

Based on control-value theory (CVT), we examined longitudinal relations between students' control and value appraisals, three activity-related achievement emotions (enjoyment, anger, and boredom), and math achievement (N = 1,716 fifth and seventh grade students). We assessed appraisals and emotions with self-report measures of perceived competence…

Reading self-concept is an important predictor of reading comprehension and vice versa. However, the mechanisms that are at work in this relation have yet to be identified. In line with the self-enhancement approach, we propose that in the reading domain, amount of reading, book choice (text difficulty and book length), and intrinsic reading…

Fractions are highly important. Therefore, it is crucial to understand the developmental trajectory of fraction knowledge and its main predictors and consequences. Our research team has proposed that we have a neurocognitive architecture dedicated to processing nonsymbolic ratios, which serves as a startup tool for fractions: the Ratio Processing…

This study examined the temporal relation between self-competence and depressive symptoms in a large, diverse, U.S. community sample of 1,344 adolescents (51% female; [x-bar] [subscript age] = 12.73, SD = 0.69, range = 11-14 years). Surveys were administered to seventh- and eighth-grade students at participating high schools in the fall of 2016…

This study examined the development of social skills across five measurement points from 4th through 7th grade, and the influence of child gender and school-related factors on the level and growth of social skills, in a large sample of normally developing children in Norway (N = 2,076). On average, children's social skills scores increased…

Part II of the Houston Longitudinal Study on the Transition to College and Work (HLS) examined potential indicators of college enrollment school and district staff might use to identify and support students at risk of not attending college. The study used administrative data from the Houston Independent School District (HISD) and tracked two…

This report examined three potential indicators of college enrollment school and district staff might use to identify and support students at risk of not attending college: (1) Chicago: Designed to predict high school graduation; based on earning six course credits--the minimum to advance to the next grade in HISD--and having at most one semester…

These are the appendices for "Transitioning to College and Work. Part 2: A Study of Potential Enrollment Indicators," which examined potential indicators of college enrollment school and district staff might use to identify and support students at risk of not attending college. The study used administrative data from the Houston…

We identified developmental trajectories of academic burnout related to psychological maladjustments (i.e., compulsion and depression) in 7th and 8th grade Korean adolescents. This is vital because it facilitates early awareness of burnout trends and related psychological maladjustments, which might influence mental health problems, thus promoting…

Mid-adolescence is a period of considerable potential growth in the language for academic writing. Yet, to date, few writing studies explore language development during this period and even fewer focus on longitudinal or diverse samples. In this study, we examined the development of language skills for academic writing in a socio-economically…

This study presents a framework that uses academic trajectories in the middle grades for identifying students in need of intervention and providing targeted support. We apply a set of academic college readiness benchmarks to rich longitudinal data for more than 360,000 students in 5900 schools across 49 states and the District of Columbia. In both…