an empirical approach based on previous research on cross-informant diagnostic estimates.23 In addition to study-specific limitations, a critical view is warranted concerning current diagnostic nomenclature more generally. Adolescence is a period of change and maturation in which emotional and behavioral difficulties may be common, and it is difficult to establish universally acceptable definitions of disorder or severity thresholds. The high comorbidity across classes of disorders also raises questions regarding the permeability of diagnostic categories and the plasticity of adolescent development. The pertinence of current and alternative developmentally-appropriate diagnostic criteria for adolescent mental disorders deserves careful attention and would benefit from continued debate.
