Table 3.
Results of Wisconsin Card Sorting Test (WCST)[18] and Tower of London test (TOL)[19] of patients with obsessive compulsive disorder (OCD), patients with obsessive compulsive personality disorder (OCPD), and healthy controls
| scale/measure | [A] OCD (n=20) mean (sd) | [B] OCPD (n=25) mean (sd) | [C] controls (n=25) mean (sd) | F (p-value)a | multiple comparison test |
| WCST | |||||
| perseveration errors | 5.55 (5.88) | 2.96 (2.74) | 1.20 (1.44) | 7.93 (0.001) | A, B>C |
| categories completed | 4.20 (2.06) | 5.16 (1.37) | 5.60 (0.81) | 5.24 (0.008) | C>A |
| TOL | |||||
| total number of moves | 20.1 (4.6) | 17.8 (3.5) | 14.6 (3.6) | 9.82 (<0.001) | A, B>C |
| total response time (sec) | 613 (502) | 346 (122) | 357 (152) | 5.71 (0.005) | A>C, B |
| planning time (sec) | 164 (69.68) | 165 (65) | 147 (73) | 0.53 (0.591) | --- |
aAnalysis of covariance (ANCOVA) adjusting for age, gender, Intelligence Quotient, educational status, and total score on the 28-item General Health Questionnaire[20]