Partial and standard bivariate correlations between psychophysical performance and clinical measures / IQ.

<p>Partial correlations are shown for psychophysical and clinical variables for participants with schizophrenia whilst controlling for the effects of IQ scores (all rows except bottom two). Standard bivariate correlations are also shown for psychophysical measures and IQ scores (bottom two rows). R = Pearson’s correlation coefficient; <i>p</i> = significance level; Th = motion coherence threshold; σ_int = internal noise; <i>n</i>_samp = sampling. See legend to <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0117951#pone.0117951.t001" target="_blank">Table 1</a> for further details of abbreviations used for clinical measures.</p><p>Partial and standard bivariate correlations between psychophysical performance and clinical measures / IQ.