Right!   The four lesson that developmental psychopathology has provided are:

note  Abnormality is normal - Most children sometimes act in unusual ways & most children with disorders are, in general, quite normal.

note  Disability changes over time - "discontinuity in disorders from childhood to adulthood" is typical (Silk et al., 2000, p 728)

note  Adolescence & adulthood may be better or worse - Outcomes seem to be based on type of childhood disorder.

note  Diagnosis depends on social context - The DSM-IV-R recognizes that the "nuances of an individual's frame of reference" need to be understood before any disorder can be accuratelly diagnosed (APA, 2000, p. xxxiv).