Drawing on life history theory, Ellis and associates' (2009) recent across- and within-species analysis of ecological effects on reproductive development highlighted two fundamental dimensions of environmental variation and influence: harshness and unpredictability. To evaluate the unique contributions of these factors, the authors of present…

Objective: Understanding for whom, and under what conditions, treatments exert their greatest effects is essential for developing personalized medicine. Research investigating moderators of outcome among evidence-based treatments for anxiety disorders is lacking. The current study examined several theory-driven and atheoretical putative moderators…

In this study we examined adolescents' physical activity (PA) stability as well as individual differences in PA across grades 7-9. In addition, we tested the predictive role of adolescents' self-determination and goal orientations in physical education at grade 6 in relation to their PA development. Adolescents' (N = 812) self-reported PA was…

Background: Irritability is a subdimension of ODD, which predicts mainly to internalizing disorders, and to a lesser extent, conduct problems and callous-unemotional traits. Given that youth with similar dispositions as the irritable types--as well as youth high in callous-unemotional (CU) traits--have both been reported to experience high levels…

The hypothesis that psychometric instruments incorporating local idioms of distress predict functional impairment in a non-Western, war-affected population above and beyond translations of already established instruments was tested. Exploratory factor analysis was conducted on the War-Related Psychological and Behavioral Problems section of the…

The study investigated family support as a buffer of stress in 153 mothers and preterm toddlers. Data were collected regarding maternal depressive symptoms, parenting stress, and family support; infant health; and videotaped mother-child interactions. Although more parenting stress related to less optimal child play, only information support…

Drawing on the expectancy-value model, stage-environment fit theory, and self-determination theory, this study examined the longitudinal associations between classroom characteristics, expectancies-values, high school course enrollment, and career aspirations in the domain of math. Data were collected on 3,048 youth who reported on their classroom…

Taking a longitudinal perspective, we tested a developmental-contextual model of entrepreneurship in a nationally representative sample. Following the lives of 6,116 young people in the 1970 British Birth Cohort from birth to age 34, we examined the role of socioeconomic background, parental role models, academic ability, social skills, and…

Gift-giving involves both the objective value of a gift and the symbolic meaning of the exchange. The objective value is sometimes considered of secondary importance as when people claim, "It's the thought that counts." We evaluated when and how mental state inferences count in gift exchanges. Because considering another's thoughts requires…

One of the hallmarks of adolescent and adult development of expert performance is its self regulation. This paper reviews different approaches to assessing the use of self-regulated learning (SRL) strategies in high-school and college students and their ability to predict academic performance. The current study assesses the use of SRL strategies…

We examined whether parental monitoring at baseline predicted subsequent substance use in a high-risk youth population. Students in 14 alternative high schools in Washington State completed self-report surveys at three time points over the course of 2 years. Primary analyses included 1,423 students aged 14-20 who lived with at least one parent or…

The connection between language and reading is well established across many languages studied to date. Little is known, however, about the role of language in reading in Arabic--a Semitic language characterized by diglossia--in which the oral and written varieties differ across language components. This study examined the relationship among…

This study investigates the phonological nature of the lexical links in the bilingual lexicon using different-script bilinguals. Highly proficient Hindi-English bilinguals performed a translation recognition task (i.e., decide whether two words presented sequentially are a correct translation pair). For the critical trials, the second word was a…

This study assessed the prediction that individuals are able to use the knowledge from their first language (L1) in processing the comparable sound contrasts in an unknown language. Two languages, Arabic and Japanese, which utilize vowel duration contrastively, were examined. Native Arabic (NA) and native Japanese (NJ) listeners' discrimination…

Federal and state initiatives (No Child Left Behind, 2001) require schools and districts to set high standards for student growth and achievement. Currently, student growth and progress are measured in Louisiana via statewide achievement tests. In 4th and 8th grades these assessments are considered to be 'high-stakes', as promotion and retention…