TY - JOUR
T1 - Replication and extension
T2 - Separate personality traits from states to predict depression
AU - Vittengl, Jeffrey R.
AU - Clark, Lee Anna
AU - Thase, Michael E.
AU - Jarrett, Robin B.
N1 - Publisher Copyright:
© 2014 The Guilford Press.
PY - 2014
Y1 - 2014
N2 - Changes in personality trait levels often parallel episodes of major depressive disorder (MDD), whereas trait factor structures and substantial retest correlations are preserved. The authors explicated this dual state/ trait nature of personality assessments among adults with recurrent MDD (N = 351) receiving cognitive therapy (CT) by testing stability and change with the Schedule for Nonadaptive and Adaptive Personality, 2nd Edition (SNAP-2; Clark, Simms, Wu, & Casillas, in press), separating state and trait variance, and predicting depressive symptoms and clinical outcomes. Many SNAP scale scores changed in CT (e.g., positive temperament increased, negative temperament decreased), and decreases in depressive symptoms accounted for most scales’ score changes. Nonetheless, SNAP scales’ state and trait components predicted depressive symptoms early and late in CT as well as clinical outcomes, and state components predicted changes in symptoms and clinical outcomes. These results support the validity of the SNAP-2 among depressed patients and highlight the salience of personalityrelevant state affect.
AB - Changes in personality trait levels often parallel episodes of major depressive disorder (MDD), whereas trait factor structures and substantial retest correlations are preserved. The authors explicated this dual state/ trait nature of personality assessments among adults with recurrent MDD (N = 351) receiving cognitive therapy (CT) by testing stability and change with the Schedule for Nonadaptive and Adaptive Personality, 2nd Edition (SNAP-2; Clark, Simms, Wu, & Casillas, in press), separating state and trait variance, and predicting depressive symptoms and clinical outcomes. Many SNAP scale scores changed in CT (e.g., positive temperament increased, negative temperament decreased), and decreases in depressive symptoms accounted for most scales’ score changes. Nonetheless, SNAP scales’ state and trait components predicted depressive symptoms early and late in CT as well as clinical outcomes, and state components predicted changes in symptoms and clinical outcomes. These results support the validity of the SNAP-2 among depressed patients and highlight the salience of personalityrelevant state affect.
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U2 - 10.1521/pedi_2013_27_117
DO - 10.1521/pedi_2013_27_117
M3 - Article
C2 - 23786268
AN - SCOPUS:84902081663
SN - 0885-579X
VL - 28
SP - 225
EP - 246
JO - Journal of Personality Disorders
JF - Journal of Personality Disorders
IS - 2
ER -