Joint developmental trajectories of anxious solitude and peer adversities from early childhood through adolescence: Characteristics and associations with indices of internalizing problems.

This study's aims were to identify distinct classes of youth exhibiting differing joint trajectories of anxious solitude (AS) and peer adversities from early childhood to adolescence and to examine relations between trajectory classes and the development of internalizing problems. A sample of 383 children (193 girls) was followed from kindergarten (