The
fourth edition of the American Psychiatric Association's Diagnostic
and Statistical Manual (DSM-IV) specifies that diagnoses of personality
disorders should seldom be made before the age of 18. However, many
studies have demonstrated predictive relations between childhood
problems and subsequent adult psychopathology, including personality
disorders. To determine whether maladaptive aspects of childhood
personality structure are concurrently associated with behavioral/emotional
problems, Belgian researchers constructed the Dimensional Personality
Symptom Item Pool (DIPSI; De Clercq et al., 2006). The item pool
was based on other personality measures and on instruments for assessing
DSM-IV versions of personality disorders. Factor analytic procedures
were used to derive hierarchical groupings of personality characteristics.
At the top of the hierarchy, the most global groupings were designated
as Internalizing and Externalizing. These groupings subsumed more
differentiated groupings designated as Disagreeableness, Emotional
Instability, Compulsivity, and Introversion. The validity of DIPSI
scales as indices of maladaptive functioning was tested in terms
of correlations with scales scored from the CBCL completed by mothers
of 205 5- to 14-year-olds who were receiving mental health services.
Correlations of .77 between DIPSI and CBCL Externalizing scores
and .68 between DIPSI and CBCL Internalizing scores indicated that
both instruments assessed similar broad patterns of problems. At
the level of more differentiated scales, correlations of .77 between
DIPSI Disagreeableness and CBCL Aggressive Behavior, .71 between
DIPSI Emotional Instability and CBCL Anxious/Depressed, and .62
between DIPSI Introversion and CBCL Withdrawn indicated that the
more differentiated DIPSI scales assessed patterns captured by some
of the CBCL syndromes. The authors concluded that the four specific
DIPSI scales can be integrated into a two-dimensional Internalizing
and Externalizing structure corresponding to that of the C BCL and
also corresponding to findings of similar Internalizing and Externalizing
patterns in adult diagnoses.
Reference:
De
Clercq, B., De Fruyt, F., Van Leeuvwen, K., & Mervielde, I.
(2006). The Structure of Maladaptive Personality Traits in Childhood:
A Step Toward an Integrative Developmental Perspective for DSM-V.
Journal of Abnormal Psychology, 115, 639-657.