TY - JOUR
T1 - Separate personality traits from states to predict depression
AU - Clark, Lee Anna
AU - Vittengl, Jeffrey
AU - Kraft, Dolores
AU - Jarrett, Robin B.
PY - 2003/4
Y1 - 2003/4
N2 - Results have been inconsistent regarding the ability of personality measures to predict future depression severity levels, leading some researchers to question the validity of personality assessment, especially when patients are acutely depressed. Using a combination of regression and factor analytic techniques, we separated the variance of personality measures into stable trait and variable state-affect components. Findings supported the hypotheses that depression severity measured at different time points would correlate with both stable trait and concurrent state-affect components in personality measures, whereas change in depression severity would correlate with state changes but not with stable trait scores. Thus, personality assessments tap both state affect and trait variance, with the state-affect variance masking the trait variance when patients are depressed.
AB - Results have been inconsistent regarding the ability of personality measures to predict future depression severity levels, leading some researchers to question the validity of personality assessment, especially when patients are acutely depressed. Using a combination of regression and factor analytic techniques, we separated the variance of personality measures into stable trait and variable state-affect components. Findings supported the hypotheses that depression severity measured at different time points would correlate with both stable trait and concurrent state-affect components in personality measures, whereas change in depression severity would correlate with state changes but not with stable trait scores. Thus, personality assessments tap both state affect and trait variance, with the state-affect variance masking the trait variance when patients are depressed.
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U2 - 10.1521/pedi.17.2.152.23990
DO - 10.1521/pedi.17.2.152.23990
M3 - Article
C2 - 12755328
AN - SCOPUS:0038076441
SN - 0885-579X
VL - 17
SP - 152
EP - 172
JO - Journal of Personality Disorders
JF - Journal of Personality Disorders
IS - 2
ER -