Table 2.

Results of unidimensional nonlinear exploratory factor analysis for 17 depression items.

Item Description	Proportion Endorsed	Standardized Loading (se)
1. Lonely	.46	.83 (.02)
2. Cries a lot	.25	.65 (.03)
3. Fears will behave badly	.17	.55 (.05)
4. Have to be perfect	.50	.56 (.03)
5. No one loves me	.15	.82 (.03)
6. Worthless/inferior	.19	.86 (.02)
7. Prefers being alone	.34	.45 (.05)
8. Feels guilty	.24	.70 (.02)
9. Is secretive	.48	.62 (.04)
10. Is underactive	.29	.49 (.05)
11. Unhappy/sad/depressed	.43	.82 (.02)
12. Worried	.55	.71 (.02)
13. Hopeless about future	.18	.76 (.03)
14. Acts to harm self	.03	.64 (.07)
15. Thinks about killing self	.05	.69 (.05)
16. Blue	.37	.81 (.03)
17. No interest in things	.28	.67 (.03)

Note: parameter estimates and standard errors based on weighted least squares estimation with mean and variance correction.