A Latent Trait-State Model of Adolescent Depression Using the Center for Epidemiologic Studies-Depression Scale

Area of Science:

• Psychology
• Developmental Psychology
• Psychometrics

Background:

• Adolescent depression involves both stable traits and fluctuating states.
• Understanding these components is crucial for accurate assessment and intervention.
• The Center for Epidemiologic Studies Depression (CES-D) scale is a common measure.

Purpose of the Study:

• To apply the latent trait-state model to the CES-D scale in adolescents.
• To differentiate between stable (trait) and changing (state) depressive symptoms.
• To examine the factorial structure of the CES-D in males and females over time.

Main Methods:

• Utilized a latent trait-state model for variance decomposition.
• Assessed the factorial structure of the CES-D across four measurement occasions (6-month intervals).
• Analyzed trait, state, specific trait, and random error parameters.

Main Results:

• The CES-D scale demonstrated comparable measurement of trait and state depression.
• A statistically significant, though smaller, trait-specific variance parameter was identified.
• General trait and state depression parameters were larger than trait-specific parameters.

Conclusions:

• The latent trait-state model effectively captures dynamic features of adolescent depressive symptomology.
• Both stable and fluctuating components of depression are measurable in adolescents.
• The model offers valuable insights into developmental changes in mood.