Abstract
Structural psychopathology research has identified two broad factors-internalizing and externalizing-that account for comorbidity among many common mental disorders. Evaluating the utility of these factors for nosology, research, and treatment entails expanding beyond a cross-sectional understanding to how these factors evolve over time. We tested factorial invariance of internalizing in three age cohort groups-35 years and under (n = 1,729), 36-50 years (n = 2,719), and over 50 years (n = 2,601)-as well as the long-term stability of internalizing within individuals. Internalizing showed a notable degree of invariance between cohorts and within cohorts over time; long-term internalizing stability was equivalently moderate-to-high in each cohort.
Original language | English (US) |
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Pages (from-to) | 987-993 |
Number of pages | 7 |
Journal | Psychology and aging |
Volume | 26 |
Issue number | 4 |
DOIs | |
State | Published - Dec 2011 |
Keywords
- Aging
- Internalizing
- Invariance
- Neuroticism
- Psychopathology
- Stability