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. Author manuscript; available in PMC: 2024 Sep 15.
Published in final edited form as: Biol Psychiatry. 2023 Apr 18;94(6):501–510. doi: 10.1016/j.biopsych.2023.04.007

Table 2.

Correlations with Percentage or Hard Task Choices in the Highest Reward Condition ($0.40)

Correlations Fisher’s r-to-z transform tests comparing Correlations across groups
HC SZ & BD C-MDD & P-MDD HC vs. SZ/BD HC vs. C-MDD/P-MDD SZ/BD vs. C-MDD/P-MDD
Running Span Percent Correct .22 .26 * .15 Z=0.22 Z=0.34 Z=0.60
Dot Probe Expectancy d’-context .26 * .37 ** .18 Z=0.77 Z=1.24 Z=2.19*
CAINS Motivation and Pleasure NA .29* −.06 NA NA Z=−1.74*
BPRS Depression NA −.09 .08 NA NA Z=−1.24
Motivation and Pleasure Self-Report .14 .10 .001 Z=−0.33 Z=1.00 Z=0.72
Center For Epidemiological Studies Depression Scale .03 .05 .07 Z=0.13 Z=−0.26 Z=−0.15
*

p <.05;

**

p<.01

Note: HC=Healthy Control; SZ=Schizophrenia; BD=Bipolar Disorder; C-MDD=Current Major Depressive Disorder; P-MDD=Past Major Depressive Disorder. Note that higher scores on the Motivation and Pleasure Self-Report Scale equal more motivation and pleasure across the week (i.e. lower motivation and pleasure negative symptoms).