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Using a meta‐analytic approach, this investigation examines the association between early pubertal timing and externalizing behaviors in adolescence and early adulthood. The findings showed that the effect size of early pubertal maturation on externalizing behaviors was r = 0.180. This small, yet significant effect size is consistent with the models of early pubertal maturation in that early maturation is associated with higher levels of externalizing behaviors. Using contrast analyses, we examined three potential moderators of this association: sex, the concurrent versus long‐term effect of early puberty, and types of puberty assessments. Neither sex nor type of pubertal timing assessment moderated the effect significantly. However, results indicated that the effect was stronger for studies that measured pubertal timing and externalizing behaviors concurrently rather than longitudinally (i.e., examining prospective effect of pubertal timing on later externalizing behaviors). The findings are discussed in terms of implications for future research.

Although it is known that parents and adolescents hold different views regarding adolescent characteristics (e.g., inter-rater agreement on adolescent behaviors between parents and adolescents is low), we know little about parent-adolescent (dis)agreement in their perceptions of parenting. The current study used 220 parent-adolescent dyads (M = 13.3 years; 50.5 % female) to address this gap and examined how the discrepancy between parents' and adolescents' perceptions of the parent's negative reactions toward an adolescent's anger affects the adolescent's problem behaviors. Results suggested the direction of the disagreement between the two parties is important: when adolescents viewed parenting more negatively than parents did, adolescents showed elevated levels of broadband externalizing behaviors and, specifically, aggressive behaviors. This finding suggests the importance of adolescents' subjective views of how mothers and fathers react to them. The findings are discussed in terms of methodology in family studies and implications toward future research.

Comprehensive chromosome screening-based PGD/S can improve clinical pregnancy and live birth rates without adversely affecting functioning in childhood at least up to age 9. Results are discussed in the context of bioethical, financial, legal, and psychological issues surrounding PGD/S.

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