Table 2

Significant group differences in the d2 test, BVRT and trial of 10 words between CF (n=28), IBD (n=30) and C (n=30)

CF Mean (SD)IBD Mean (SD)C Mean (SD)F(2, 85)p ValuePost hoc Duncan's test (p<0.05)
d2: total number of errors28.5 (27.47)27.03 (23.93)13.03 (13.9)4.30.017CF, IBD > k
d2: percentage of errors6.89 (5.9)6.31 (5.12)3.05 (3.5)5.220.007CF, IBD > k
d2: fluctuation rate15.75 (5.14)14.33 (5.58)12.37 (3.16)3.7480.028CF > k
d2: concentration performance150.04 (45.2)160.2 (48.25)179.27 (40.82)3.1960.046CF < k
BVRT: number of correct reproductions6.57 (1.85)7.07 (1.36)7.73 (1.46)4.0290.021CF < k
BVRT: total number of errors5 (2.91)4.17 (1.95)2.87 (2.19)5.9930.004CF, IBD > k
Trial of 10 words: average after five attempts7.69 (0.78)7.64 (0.9)8.13 (0.61)3.6360.031CF, IBD < k
Trial of 10 words: after distraction7.79 (1.71)8.23 (1.55)9.1 (1.13)5.9990.004CF, IBD < k
Trial of 10 words: after 30 min8.04 (1.48)8.2 (1.37)8.97 (1.1)4.1550.019CF, IBD < k
  • BVRT, Benton Visual Retention Test; C, control group; CF, cystic fibrosis; d2 test, d2 Test of Attention by Brickenkamp.