Participants will then be randomly assigned to receive PCIT-ED or Developmental Education Parenting Intervention (DEPI). Participants in both groups will attend fourteen 1-hour therapy sessions over a period of 14 weeks. For those assigned to PCIT-ED, most sessions will include both parent and child participants, but some will include parents only. During the parent-only sessions, the goals and procedures of upcoming therapy visits will be explained to parents. During sessions with both parent and child, participants will be taught positive parent-child interaction skills, ways to manage emotions, and relaxation techniques. After each therapy session, participants will be given homework that will involve practicing the skills learned in therapy sessions at home. At three points during the study, parents will also be asked to complete a brief questionnaire about their thoughts and feelings toward the therapy process. The therapy sessions for the participants assigned to DEPI will provide basic education in all areas of preschool development, with emphasis on social and emotional development. The initial assessments will be repeated for all participants at the end of treatment.