Table 4. Change of norm from the original SNSB to the SNSB-II.
| Domain/Subtest | Compared group | Change of norm mean | Rate of change | Sig. group* | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lowest | Greatest | Average of absolute change | Lowest (%) | Greatest (%) | Average of absolute rate (%) | Group of less than 10% | Group of greater than 10% | ||||
| Attention | |||||||||||
| DST:F | 19 | −0.12 | 0.92 | 0.29 | −2.19 | 21.65 | 5.88 | 0 | 2 | 0 | |
| DST:B | 19 | −0.28 | 0.73 | 0.30 | −6.65 | 30.86 | 10.13 | 0 | 6 | 1 | |
| DST:F-B† | 19 | −0.47 | 0.73 | 0.24 | −21.66 | 64.60 | 14.16 | 5 | 5 | 0 | |
| Language & related functions | |||||||||||
| K-BNT | 19 | 2.52 | 10.48 | 5.06 | 5.92 | 39.92 | 14.08 | 0 | 12 | 8 | |
| Visuospatial functions | |||||||||||
| RCFT:copy (score) | 19 | −1.19 | 17.93 | 2.99 | −3.72 | 124.34 | 16.92 | 0 | 7 | 4 | |
| RCFT:copy (time) | 19 | −314.85 | −37.03 | 137.08 | −59.31 | −16.14 | 36.33 | 19 | 0 | 15 | |
| Memory | |||||||||||
| SVLT-E:IR | 19 | −0.35 | 5.31 | 2.02 | −1.85 | 44.25 | 12.77 | 0 | 11 | 0 | |
| SVLT-E:DR | 19 | −0.78 | 2.29 | 0.67 | −11.93 | 76.33 | 14.48 | 1 | 9 | 0 | |
| SVLT-E:recognition (score) | 19 | −0.60 | 1.97 | 0.65 | −2.82 | 10.59 | 3.32 | 0 | 1 | 2 | |
| SVLT-E:recognition (TP) | 19 | −0.72 | 1.59 | 0.47 | −6.55 | 18.71 | 4.98 | 0 | 2 | 1 | |
| SVLT-E:recognition (FP) | 19 | −1.16 | 0.61 | 0.36 | −39.29 | 52.14 | 19.76 | 6 | 5 | 1 | |
| SVLT:E:recognition (discriminability index) | 19 | −2.70 | 8.14 | 2.69 | −3.05 | 10.50 | 3.28 | 0 | 1 | 2 | |
| RCFT:IR | 19 | −2.71 | 5.23 | 2.10 | −16.23 | 107.17 | 25.57 | 3 | 10 | 1 | |
| RCFT:DR | 19 | −2.95 | 6.35 | 1.83 | −19.33 | 163.66 | 26.38 | 2 | 8 | 2 | |
| RCFT:recognition | 19 | −0.98 | 2.73 | 1.00 | −4.62 | 18.10 | 5.63 | 0 | 3 | 3 | |
| RCFT:recognition (TP) | 19 | −0.29 | 2.76 | 1.30 | −2.81 | 48.00 | 16.46 | 0 | 15 | 10 | |
| RCFT:recognition (FP) | 19 | −1.03 | 1.19 | 0.61 | −30.12 | 148.75 | 43.11 | 4 | 13 | 3 | |
| RCFT:recognition (discriminability index) | 19 | −4.04 | 11.40 | 4.22 | −4.57 | 18.14 | 5.70 | 0 | 3 | 3 | |
| Frontal/executive functions | |||||||||||
| COWAT:animal | 19 | −2.28 | 2.29 | 1.21 | −15.91 | 15.27 | 8.10 | 4 | 1 | 0 | |
| COWAT:supermarket | 19 | −2.03 | 5.78 | 1.37 | −12.65 | 74.58 | 10.89 | 2 | 3 | 0 | |
| COWAT:phonemic (/g/) | 16 | −0.67 | 3.40 | 1.05 | −11.90 | 50.97 | 16.08 | 1 | 9 | 2 | |
| COWAT:phonemic (/o/) | 16 | −0.22 | 2.60 | 0.99 | −3.41 | 48.05 | 17.56 | 0 | 8 | 0 | |
| COWAT:phonemic (/s/) | 16 | −1.67 | 3.09 | 1.06 | −23.03 | 44.14 | 15.25 | 3 | 7 | 1 | |
| COWAT:phonemic (total)‡ | 16 | −1.81 | 9.10 | 2.74 | −9.81 | 44.03 | 13.71 | 0 | 8 | 2 | |
| K-CWST:WR (time per item) | 16 | −0.21 | 0.01 | 0.11 | −23.33 | 1.14 | 12.35 | 9 | 0 | 4 | |
| K-CWST:CR (time per item) | 16 | −0.23 | 0.25 | 0.13 | −15.44 | 17.78 | 8.82 | 3 | 5 | 1 | |
| K-CWST:CR (correct) | 16 | −13.08 | 12.25 | 7.25 | −14.72 | 17.10 | 8.69 | 3 | 2 | 1 | |
| K-CWST:CR (inference)§ | 16 | −0.20 | 0.39 | 0.17 | −24.10 | 84.78 | 32.07 | 1 | 12 | 5 | |
SNSB: Seoul Neuropsychological Screening Battery, SNSB-II: Seoul Neuropsychological Screening Battery, 2nd Edition, DST: Digit Span Test, F: forward, B: backward, K-BNT: Korean-Boston Naming Test, RCFT: Rey Complex Figure Test, SVLT-E: Seoul Verbal Learning Test-Elderly’s version, IR: immediate recall, DR: delayed recall, TP: true positive, FP: false positive, COWAT: Controlled Oral Word Association Test, K-CWST: Korean-Color Word Stroop Test, WR: word reading, CR: color reading.
*Number of age-education subgroups significant at p<0.05 of t-test. It should be noted that the statistical assumptions for t-test does not hold in this analysis.
†Forward score minus backward score in the Digit Span Test.
‡The sum of the 3 COWAT:phonemic (/g/, /o/, and /s/) scores.
§The K-CWST:CR (time per item) score minus the K-CWST:WR (time per item) score.