Cognitive Outcomes of Children With Complex Trauma: A Systematic Review and Meta-Analyses of Longitudinal Studies.

Longitudinal studies have shown that children with complex trauma (i.e., exposure to multiple or repeated traumatic events of an interpersonal nature) have poorer cognitive outcomes later in life than children without complex trauma.

Children With Persistent Versus Transient Early Language Delay: Language, Academic, and Psychosocial Outcomes in Elementary School.

Purpose The objective of this study was to compare children with persistent versus transient preschool language delay on language, academic, and psychosocial outcomes in elementary school. Method Children with persistent language delay ( = 30), transient language delay ( = 29), and no language delay (controls; = 163) were identified from a population-based sample of twins. They were compared on language skills, academic achievement, and psychosocial adjustment in kindergarten and Grades 1, 3, 4, and 6.

A Genetic Cross-Lagged Study of the Longitudinal Association Between Anxiety and Depressive Symptoms During Childhood.

This study documented the etiology contributions between anxiety symptoms (AS) and depressive symptoms (DS) from ages 6-12 years. Teachers assessed AS and DS in 1112 twins at 5 time points. A genetic cross-lagged model was used to estimate genetic/environmental contributions to cross-sectional, cross-age and cross-lag associations.

Challenges and strategies pertaining to recruitment and retention of frail elderly in research studies: a systematic review.

Introduction: Recruitment and retention of frail elderly in research studies can be difficult.

Objective: To identify challenges and strategies pertaining to recruitment and retention of frail elderly in research studies.

Methods: A systematic review was conducted.