The greek translation of the symptoms rating scale for depression and anxiety: preliminary results of the validation study

Table 5 Means, standard deviations, minimum and maximum for all SRSDA subscales conceming their test, retest, average and difference between the two applications. The two columns to the right represent the division of the minimum and maximum difference to the standard deviation of the difference. It is desirable these values to be generally between ±2. It is obvious that some minor problems exist with melancholia and mania subscales

	Valid N	Mean	Minimum	Maximum	Std. Dev.	Lower deviance in SDs	Upper deviance in SDs
BDI-I-21
test	20	10.85	0.00	24.00	8.19
retest	20	10.80	0.00	27.00	9.50
average	20	10.83	0.50	23.50	8.65
difference	20	0.05	-7.00	8.00	3.89	-1.80	2.06
BDI-I-13
test	20	5.25	0.00	13.00	4.24
retest	20	4.85	0.00	13.00	5.20
average	20	5.05	0.00	11.50	4.55
difference	20	0.40	-4.00	5.00	2.72	-1.47	1.84
Melancholia subscale
test	20	6.30	0.00	16.00	4.78
retest	20	6.40	0.00	17.00	5.40
average	20	6.35	0.00	14.50	4.94
difference	20	-0.10	-6.00	4.00	2.53	*-2.37*	1.58
Asthenia subscale
test	20	6.05	0.00	12.00	4.11
retest	20	6.40	0.00	14.00	4.89
average	20	6.23	0.00	12.00	4.27
difference	20	-0.35	-5.00	4.00	2.94	-1.70	1.36
Anxiety subscale
test	20	6.75	0.00	17.00	5.54
retest	20	7.65	0.00	19.00	6.53
average	20	7.20	0.00	15.00	5.72
difference	20	-0.90	-8.00	5.00	3.99	-2.01	1.25
Mania subscale
test	20	-0.50	-2.00	0.00	0.69
retest	20	-0.55	-2.00	0.00	0.69
average	20	-0.53	-2.00	0.00	0.68
difference	20	0.05	0.00	1.00	0.22	0.00	*4.55*