Table 1.
Reliability statistics for all study measures
| Measure | Variable | Kappa (n) | Cronbach’s alpha | |
|---|---|---|---|---|
| Wave 1 | SCID | Depressive disorder | 0.93 (30) | – |
| Anxiety disorder | 0.91 (30) | – | ||
| Substance abuse/dependence disorder | 1.00 (30) | – | ||
| Wave 3 | SCID | SCID depressive disorder | 0.91 (45) | – |
| SCID anxiety disorder | 0.73 (45) | – | ||
| Substance abuse/dependence disorder | 0.90 (45) | – | ||
| ASA-27 | ASA | – | 0.91 | |
| K-SADS | Depressive disorder | 0.79 (74) | – | |
| Anxiety disorder | 0.68 (74) | – | ||
| Separation anxiety disorder | 0.72 (74) | – | ||
| SCARED | Separation anxiety, mother report | – | 0.74 | |
| Separation anxiety, father report | – | 0.67 | ||
| Separation anxiety, child report | – | 0.71 | ||
| Total, mother reporta | – | 0.89 | ||
| Total, father reporta | – | 0.87 | ||
| Total, child reporta | – | 0.87 | ||
| CDI | Total, mother reporta | – | 0.79 | |
| Total, father report | – | 0.76 | ||
| Total, child report | – | 0.74 | ||
| Wave 4 | K-SADS | Depressive disorder | 0.72 (25) | – |
| Anxiety disorder | 0.75 (25) | – | ||
| Separation anxiety disorder | 0.80 (25) | – | ||
| SCARED | Separation anxiety, mother report | – | 0.62 | |
| Separation anxiety, father report | – | 0.57 | ||
| Separation anxiety, child report | – | 0.66 | ||
| Total, mother reporta | – | 0.90 | ||
| Total, father reporta | – | 0.88 | ||
| Total, child reporta | – | 0.89 | ||
| CDI | Total, mother reporta | – | 0.79 | |
| Total, father report | – | 0.80 | ||
| Total, child report | – | 0.82 |
a
Excludes separation anxiety.
Notes: SCID, Structured Clinical Interview for DSM-IV, Non-Patient Version. ASA-27, Adult Separation Anxiety Symptom Questionnaire. K-SADS, The Kiddie Schedule for Affective Disorders and Schizophrenia Present and Lifetime Version. SCARED, Screen for Child Anxiety Related Disorders. CDI, Children’s Depression Inventory.