Table 1.
Standardized factor loadings of the 6-items of the depressive symptoms scale
| |
Single-factor model |
Two-factor model |
Three-factor model |
|||
|---|---|---|---|---|---|---|
| Items | I | I | II | I | II | III |
| 1. Felt too tired to do things |
.37/.63/.66 |
.54/.74/.81 |
|
.54/.74/.82 |
|
|
| 2. Had trouble going to sleep or staying asleep |
.35/.60/.57 |
.50/.70/.69 |
|
.51/.71/.70 |
|
|
| 3. Felt unhappy, sad, or depressed |
.62/.81/81 |
|
.62/.81/.81 |
|
.68/.87/.87 |
|
| 4. Felt hopeless about the future |
.60/.76/.71 |
|
.60/.77/.72 |
|
.66/.81/.75 |
|
| 5. Felt nervous or tense |
.58/.73/.82 |
|
.59/.73/.82 |
|
|
.70/.78/.84 |
| 6. Worried too much about things | .74/.81/.86 | .75/.81/.87 | .81/.88/.90 | |||
Note. First, second, and third factor loadings correspond to Time 1, 2, and 3, respectively.