Table 1.
Group characteristics for the OC high and OC low group for both samples.
| Characteristics | Group low OCI-R group | high OCI-R group |
|---|---|---|
| Study I probabilistic learning task | ||
| Number of males, females | 16, 14 | 4, 6 |
| Age (years) | 19.1 (1.8; 18-28) | 18.6 (0.5; 18-19) |
| OCI-Ra | 7.3 (5.3; 1-19) | 38.6 (10.3; 22-50) |
| BDIa | 3.5 (3.8; 0-15) | 11.7 (6.6; 1-26) |
| Total Test Accuracy | .70 (.08) | .71 (.08) |
| ‘Go’ Accuracy | .68 (.14) | .72 (.11) |
| ‘NoGo’ Accuracy | .69 (.16) | .70 (.24) |
| Study II probabilistic learning task | ||
| Number of males, females | 6, 10 | 4, 10 |
| Age (years) | 19.0 (0.6; 18-20) | 19.1 (1.5; 18-22) |
| OCI-Ra | 8.5 (5.4; 0-16) | 38.9 (10.1; 22-55) |
| BDIa | 3.7 (4.8; 0-13) | 8.6 (6.6; 1-21) |
| Total Test Accuracy | .73 (.11) | .66 (.09) |
| ‘Go’ Accuracy | .73 (.17) | .76 (.17) |
| ‘NoGo’ Accuracy | .67 (.16) | .69 (.20) |
| Study II flanker task | ||
| Number of males, females | 10, 8 | 6,12 |
| Age (years) | 18.8 (0.9; 18-21) | 18.9 (1.2; 18-22) |
| OCI-Ra | 8.8 (6.6; 0-17) | 37.9 (10.0; 22-58) |
| BDIa | 4.3 (4.4; 0-13) | 8.2 (6.1; 1-21) |
Group means are reported, with standard deviation (or SD and range) in parentheses. OCI-R=Obsessive-Compulsive Inventory –Revised. BDI=Beck Depression Inventory.
a
Higher scores on the OCI-R and BDI are indicative of more OCD and depressive symptoms. Maximum score on the OCI-R is 72. A score of 21 is used as a cutoff, with scores of 21 or higher suggesting the presents of OCD. Maximum score on the BDI is 63.