Table 2.
Association between digital Clock Drawing Test (dCDT) composite scores and neuropsychological tests.
Neuropsychological test | Significant dCDT features, n | Participants, n | Effect size | Standard error | Bonferroni-corrected P valuea |
Logical Memory—Immediate Recall | 48 | 2048 | 0.0625 | 0.0061 | 7.4×10-24 |
Logical Memory—Delayed Recall | 54 | 2047 | 0.0571 | 0.0059 | 8.1×10-22 |
Logical Memory—Recognition | 28 | 2037 | 0.0681 | 0.0086 | 4.2×10-15 |
Visual Reproduction—Immediate Recall | 62 | 2049 | 0.0592 | 0.0041 | 3.0×10-45 |
Visual Reproduction—Delayed Recall | 61 | 2048 | 0.0596 | 0.0042 | 8.0×10-44 |
Visual Reproduction—Recognition | 69 | 2043 | 0.0548 | 0.0044 | 5.3×10-35 |
Paired Associate Learning—Immediate Recall | 32 | 1991 | 0.0966 | 0.0104 | 5.8×10-20 |
Paired Associate Learning—Delayed Recall | 50 | 2026 | 0.0612 | 0.0064 | 5.2×10-21 |
Paired Associate Learning—Recognition | 13 | 2062 | 0.1561 | 0.0287 | 5.8×10-8 |
Digit Span—Forward | 32 | 2053 | 0.0773 | 0.0092 | 8.4×10-17 |
Digit Span—Backward | 35 | 2032 | 0.0780 | 0.0090 | 8.0×10-18 |
Trail Making Test A | 81 | 2043 | 0.0404 | 0.0019 | 6.5×10-87 |
Trail Making Test B | 86 | 1999 | 0.0428 | 0.0026 | 1.0×10-56 |
Similarities | 46 | 2034 | 0.0783 | 0.0072 | 4.1×10-27 |
Hooper Visual Organization Test | 66 | 2007 | 0.0583 | 0.0041 | 2.5×10-44 |
Boston Naming Test—30-item version | 47 | 2062 | 0.0615 | 0.0063 | 2.7×10-22 |
Verbal Fluency | 66 | 2007 | 0.0523 | 0.0048 | 4.0×10-27 |
Verbal Fluency—Animal | 31 | 2062 | 0.0637 | 0.0068 | 1.2×10-20 |
aAll P values remained significant after Bonferroni correction (P<2.8×10–3).