This article highlights the defining principles, progress and future directions in developmental psychopathology in relation to this special section. Six fundamental principles of developmental psychopathology are identified and the pervasive impact of this integrative framework on research, theory, and practice in behavioral health fields over…

Considers possible contributions of developmental psychology to analysis and solution of practical problems by proposing a practical action model comprising the following: nature of the phenomenon or problem; existence of the phenomenon or problem; outcome in case of no intervention; goals for intervention; achievement of goals; and assessing…