Table 3. Beck Depression Inventory-II Statistics.

		Time 1 Sample			Time 2 Sample
BDI-II Item	n	M (SD)	Range	n	M (SD)	Range	Test-retest r
Sadness	1579	0.45 (0.66)	0-3	698	0.40 (0.62)	0-3	0.60***
Pessimism	1579	0.55 (0.76)	0-3	698	0.48 (0.68)	0-3	0.65***
Past-Failure	1579	0.77 (0.86)	0-3	698	0.59 (0.77)	0-3	0.74***
Loss of Pleasure	1579	0.71 (0.75)	0-3	698	0.63 (0.72)	0-3	0.73***
Guilty Feelings	1579	0.57 (0.67)	0-3	698	0.47 (0.66)	0-3	0.69***
Punishment Feelings	1579	0.49 (0.93)	0-3	698	0.38 (0.82)	0-3	0.59***
Self-Dislike	1579	0.66 (0.89)	0-3	698	0.51 (0.79)	0-3	0.64***
Self-Criticalness	1578	0.64 (0.85)	0-3	698	0.55 (0.81)	0-3	0.58***
Suicidal Thoughts or Wishes	1578	0.23 (0.47)	0-3	698	0.20 (0.41)	0-2	0.70***
Crying	1578	0.55 (0.90)	0-3	698	0.46 (0.83)	0-3	0.53***
Agitation	1579	0.57 (0.79)	0-3	697	0.47 (0.71)	0-3	0.54***
Loss of Interest	1579	0.70 (0.86)	0-3	698	0.61 (0.80)	0-3	0.70***
Indecisiveness	1579	0.58 (0.80)	0-3	698	0.46 (0.72)	0-3	0.71***
worthlessness	1578	0.42 (0.71)	0-3	698	0.38 (0.68)	0-3	0.69***
Loss of Energy	1579	0.92 (0.71)	0-3	698	0.84 (0.71)	0-3	0.70***
Changes in Sleeping Pattern	1572	1.16 (0.95)	0-3	696	1.05 (0.95)	0-3	0.54***
Irritability	1579	0.58 (0.76)	0-3	698	0.50 (0.72)	0-3	0.62***
Changes in Appetite	1571	0.87 (0.88)	0-3	697	0.79 (0.87)	0-3	0.48***
Concentration Difficulty	1579	0.77 (0.76)	0-3	698	0.63 (0.71)	0-3	0.70***
Tiredness or Fatigue	1579	0.89 (0.79)	0-3	698	0.82 (0.77)	0-3	0.71***
Loss of Interest in Sex	1579	0.90 (0.97)	0-3	698	0.84 (0.95)	0-3	0.75***
Total	1566	13.94 (10.81)	0-58	694	12.07 (10.51)	0-56	0.83***

Note.

^*p<.05

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^***p<.001