Changes in physical activity, diet, and body weight across the education and employment transitions of early adulthood: A systematic review and meta-analysis

Early adulthood is a time when individuals go through important life transitions, such as moving from high school into higher education or employment, but the impact of these life transitions on changes in body weight, diet, and physical activity is not known. We searched six electronic databases to July 2019 for longitudinal observational studies providing data on adiposity, diet, and/or physical activity across education or employment transitions in young people aged between 15 and 35 years. We found 19 studies, of which 17 assessed changes in physical activity, three body weight, and five diet or eating behaviours. Meta-analysis (n=9) found that leaving high school was associated with a decrease of -7.04 (95% CI, -11.26, -2.82) min/day of moderate-to-vigorous physical activity. Three studies reported increases in body weight on leaving high school. A small number of studies suggested decreases in diet quality on leaving high school (n=2/4 papers) and leaving university (n=1) but not on starting employment (n=1). Studies suggested no change in physical activity on leaving university (n=4) but decreases in physical activity on starting employment (n=2/3). The transition of leaving high school is an important time to support individuals to prevent decreases in physical activity and gains in body weight.

Personality and relationship quality during the transition from high school to early adulthood

The post-high school transition period is believed to be associated with considerable changes in social networks, yet longitudinal studies documenting these changes are scarce. To address this gap, the current research explored 3 relevant issues. First, changes in participants' relationship characteristics during the transition from high school were examined. Second, the roles of personality traits as antecedents of these changes were studied. Third, the association between change in relationship characteristics and personality during the transition was explored. A sample of over 2,000 German emerging adults, surveyed before leaving school and then 2 years after the transition from high school, was assessed on personality traits and a multidimensional assessment of the quality of their relationships. Findings indicated that participants experienced mostly positive changes in relationship quality during the transition from high school and that antecedent personality at school was an important predictor of the nature of this change. Finally, change in relationship quality was found to be associated with personality change during the post-school transition. Findings indicated that personality traits may influence transition success and that change in relationships during this transition may influence personality development. The implications of the research for post-school transition success are discussed.

Adaptability: Conceptual and Empirical Perspectives on Responses to Change, Novelty and Uncertainty

Adaptability is proposed as individuals’ capacity to constructively regulate psycho-behavioral functions in response to new, changing, and/or uncertain circumstances, conditions and situations. The present investigation explored the internal and external validity of an hypothesised adaptability scale. The sample comprised 2,731 high school students. In terms of internal validity, exploratory and confirmatory factor analysis (EFA and CFA) suggested a reliable higher order adaptability factor subsumed by a reliable first order cognitive-behavioural factor and a reliable first order affective factor. Multi-group CFA indicated invariance in factor structure as a function of gender, age, and language background. Further, age (younger adolescents), language background (non-English speaking), and parents’ education (higher levels) predicted higher order adaptability, while gender (males) predicted first order affective adaptability. In terms of external validity, consistent with hypotheses, higher and first order adaptability was differentially associated with cognate/aligned factors (personality, implicit theories of ability, buoyancy) and also with psycho-educational wellbeing ‘outcome’ factors (achievement, enjoyment of school, meaning and purpose, life satisfaction). Findings hold theoretical and empirical implications for researchers and practitioners seeking to better understand the constructive regulation of individuals confronted with situations involving novelty, change, and uncertainty.