Table 3.
Brief Negative Symptom Scale (BNSS)
| ||
---|---|---|
Coefficient | Estimate (SE) | p-value |
Intercept | 1.63 (0.17) | <0.001 |
Reward | 0.61 (0.11) | <0.001 |
Rarity | 0.02 (0.06) | 0.67 |
BNSS | −0.03 (0.01) | 0.03 |
Reward × Rarity | 0.12 (0.07) | 0.09 |
Reward × BNSS | −0.007 (0.008) | 0.40 |
Rarity × BNSS | 0.0003 (0.004) | 0.085 |
Reward × Rarity × BNSS | 0.006 (0.005) | 0.24 |
IQ
| ||
---|---|---|
Coefficient | Estimate (SE) | p-value |
Intercept | 1.51 (0.13) | <0.001 |
Reward | 0.50 (0.07) | <0.001 |
Rarity | 0.06 (0.04) | 0.10 |
Group | 0.12 (0.11) | 0.28 |
IQ | 0.02 (0.009) | 0.07 |
Reward × Rarity | 0.25 (0.05) | <0.001 |
Reward × IQ | 0.004 (0.005) | 0.49 |
Rarity × IQ | 0.004 (0.003) | 0.13 |
Reward × Rarity × IQ | 0.014 (0.004) | <0.001 |
Snaith-Hamilton Pleasure Scale (Hedonic Capacity)
| ||
---|---|---|
Coefficient | Estimate (SE) | p-value |
Intercept | 1.51 (0.13) | <0.001 |
Reward | 0.50 (0.07) | <0.001 |
Rarity | 0.06 (0.04) | 0.09 |
Group | 0.12 (0.11) | 0.28 |
SNAITH | 0.03 (0.01) | 0.09 |
Reward × Rarity | 0.26 (0.06) | <0.001 |
Reward × SNAITH | 0.02 (0.008) | 0.03 |
Rarity × SNAITH | 0.003 (0.004) | 0.50 |
Reward × Rarity × SNAITH | 0.01 (0.01) | 0.11 |
Note: Coefficients predicting response repetition from the outcome of the previous trial, the transition type, and negative symptoms (BNSS total score), WTAR estimated full scale IQ, and the Snaith-Hamilton Pleasure Scale. Models including Snaith and IQ were tested across both groups. The model including BNSS was included only the SZ group