This study utilized a series of latent profile analyses to identify different profiles of 521 toddlers in Early Head Start across behavioral and language domains. The study then examined individual, family, and socioeconomic predictors of profile. Data were drawn from the Early Head Start Family and Child Experiences Study, a nationally-representative, prospective, longitudinal study of children assessed at ages 1, 2, and 3. The latent profile analyses suggested four distinct profiles of development at age 3: children who were well-adjusted, children with parent-reported behavior problems, children with staff-reported behavior problems, and children with multiple difficulties. (author abstract)