. 2010 Dec;20(6):513–516. doi: 10.1089/cap.2010.0063

Table 2.

Construct Validity

Scale	Mean	Screen CDRS-R	Screen CGAS	Screen CGI-S	Base CDRS-R	Base CGAS	Base CGI-S	Exit CDRS-R	Exit CGAS	Exit CGI-S	Exit CGI-I	Change in CDRS-R
Screen CDRS-R	53.0 ± 10.4	1.00	−0.54^a	0.87^a	0.42^a	−0.15	0.40^a	0.02	0.09	0.02	−0.06	0.30^a
Screen CGAS	53.3 ± 7.6	−0.54^a	1.00	−0.65^a	−0.30^a	0.47^a	−0.30^a	−0.08	0.27	−0.09	−0.06	−0.12
Screen CGI-S	4.4 ± 1.0	0.87^a	−0.65^a	1.00	0.34^a	−0.15	0.45^a	0.05	0.01	0.07	0.01	0.18
Base CDRS-R	57.9 ± 8.8	0.42^a	−0.30^a	0.34^a	1.00	−0.52^a	0.80^a	0.06	0.03	0.05	−0.08	0.53^a
Base CGAS	51.7 ± 6.2	−0.15	0.47^a	−0.15	−0.52^a	1.00	−0.46^a	−0.12	0.25	−0.15	−0.03	−0.14
Base CGI-S	4.8 ± 0.7	0.40^a	−0.30^a	0.45^a	0.80^a	−0.46^a	1.00	0.06	0.08	0.07	−0.01	0.37^a
Exit CDRS-R	27.7 ± 11.4	0.02	−0.09	0.05	0.06	−0.12	0.06	1.00	−0.77^a	0.93^a	0.92^a	−0.82^a
Exit CGAS	66.3 ± 11.5	0.09	0.27^b	0.01	0.03	0.25^b	0.08	−0.77^a	1.00	−0.77^a	−0.77^a	0.67^a
Exit CGI-S	2.4 ± 1.2	0.02	−0.09	0.07	0.05	−0.15	0.07	0.93^a	−0.77^a	1.00	0.91^a	−0.76^a
Exit CGI-I	1.9 ± 1.1	−0.06	−0.06	0.01	−0.08	−0.03	−0.01	0.92^a	−0.77^a	0.91^a	1.00	−0.83^a
Change in CDRS-R	−28.9 ± 13.4	0.30^a	−0.12	0.18	0.53^a	−0.14	0.37^a	−0.82^a	0.67^a	−0.76^a	−0.83^a	1.00

^{^a}

p < 0.01.

^{^b}

p < 0.05.

CDRS-R = Children's Depression Rating Scale–Revised; CGAS = Children's Global Assessment Scale; CGI-I = Clinical Global Impressions-Improvement; CGI-S = Clinical Global Impressions–Severity.