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. 2012 Jan;9(1):15–24.

TABLE 3.

Test-retest reliability*

SCALE INTRA-CLASS CORRELATION COEFFICIENT
TIME 1 TIME 2 CHANGE
PANSS positive 0.755 0.855 -
PANSS negative 0.747 0.873 -
PANSS total 0.884 0.898 -
YMRS total 0.844 0.737 -
HAM-D-21 total 0.816 0.759 -
CGI-S-SCA positive 0.573 0.632 -
CGI-S-SCA negative 0.720 0.559 -
CGI-S-SCA depressive 0.667 0.444 -
CGI-S-SCA manic 0.692 0.756 -
CGI-S-SCA overall 0.888 0.517 -
CGI-C-SCA positive - - 0.526
CGI-C-SCA negative - - 0.475
CGI-S-SCA depressive - - 0.514
CGI-C-SCA manic - - 0.634
CGI-C-SCA overall - - 0.576
*

Based on two sets of videotaped interviews of a single actor representing two time points rated by 10 randomly selected clinical trial raters from the US, India, and Eastern Europe for a total of 30 raters. First and second ratings by each rater were separated by 2 weeks.

p<0.05 for all values

CGI-S-SCA

Clinical Global Impression of Severity for Schizoaffective Disorder

HAM-D-21

21-item Hamilton Rating Scale for Depression

PANSS

Positive and Negative Syndrome Scale

YMRS

Young Mania Rating Scale