. Author manuscript; available in PMC: 2015 Jan 1.

Published in final edited form as: Schizophr Res. 2013 Dec 11;152(1):289–294. doi: 10.1016/j.schres.2013.11.013

Table 3.

Intra-class Correlations (95% CI) Between Measured and Predicted Symptom Ratings Obtained with Regression-Based Conversion Equations

Predicted Symptom Rating	ICC (95% CI) N=29
SAPS [composite] Total predicted by PANSS Positive^*	0.65 (0.37 - 0.82)
SAPS [global] Summary predicted by PANSS Positive	0.72 (0.48 - 0.86)
SAPS [global] Summary predicted by SAPS [composite] Total score	0.68 (0.43 - 0.84)
PANSS Positive predicted by Marder Positive	0.97 (0.93 - 0.99)
SAPS [composite] Total predicted by Marder Positive	0.65 (0.37 - 0.82)
SAPS [global] Summary predicted by Marder Positive	0.66 (0.39 - 0.82)

SANS [global] Summary predicted by SANS [composite] Total score	0.91 (0.82 - 0.96)
SANS [composite] Total predicted by PANSS Negative	0.82 (0.66 - 0.91)
SANS [global] Summary predicted by PANSS Negative	0.78 (0.58 - 0.89)
PANSS Negative predicted by Marder Negative	0.92 (0.84 - 0.96)
SANS [composite] Total predicted by Marder Negative	0.66 (0.40 - 0.82)
SANS [global] Summary predicted by Marder Negative	0.79 (0.61 -0.90)

Note that the ICCs for the vice versa predictions (e.g., PANSS Positive predicted by SAPS [composite] Total are equivalent.