## 3 Results
### Construct Validity  
In this study, we explored the factor structure of the Co-Wis subtests. Factor analyses were conducted to see if the Co-Wis subtests had a factor structure that corresponded to the presumptive cognitive domain. We extracted Co-Wis factors using the principal component formula and SPSS version 25.0. Through the Kaiser-Meyer-Olkin (KMO) and Bartlett tests, the adequacy of the selection of the subtests and the suitability of the factorial analysis model were verified, as were results of the commonality (Table 5). \begin{table}
\begin{tabular}{c c c c} \hline \hline \multirow{2}{*}{**Co-Wis Subtest**} & **Co-Wis Visit 1** & **Co-Wis Visit 2** & \multirow{2}{*}{\(\mathbf{r}\)} \\  & **Mean (SD)** & **Mean (SD)** & \\ \hline Word memory (immediately) & 11.39 (4.95) & 13.42 (6.22) & 0.772 ** \\ Word memory (delay) & 1.69 (2.20) & 2.72 (2.79) & 0.626 ** \\ Word memory (recognition) & 5.88 (2.49) & 6.46 (2.42) & 0.683 ** \\ Word memory (total) & 18.96 (8.39 & 22.60 (10.47) & 0.816 ** \\ Figure drawing (immediately) & 14.81 (4.78) & 15.48 (5.10) & 0.564 ** \\ Figure drawing (recall) & 4.65 (5.46) & 8.82 (6.87) & 0.553 ** \\ Clock drawing & 2.24 (0.98) & 2.38 (0.81) & 0.588 ** \\ Puzzle construction & 1.84 (1.82) & 1.90 (1.86) & 0.529 ** \\ Four fundamental arithmetic & 6.19 (3.30) & 6.48 (3.39) & 0.759 ** \\ Digit coding & 7.91 (6.83) & 9.02 (7.64) & 0.872 ** \\ Stroop (word) & 40.72 (17.15) & 41.49 (15.82) & 0.587 ** \\ Stroop (color) & 18.56 (14.97) & 21.39 (15.57) & 0.765 ** \\ Picture naming & 6.01 (1.99) & 6.47 (1.99) & 0.754 ** \\ Verbal fluency (total) & 31.00 (16.99) & 32.75 (17.05) & 0.829 ** \\ Trail making (A type) & 47.91 (56.66) & 39.53 (40.35) & 0.251 ** \\ Trail making (B type) & 135.04 (115.67) & 109.49 (105.60) & 0.696 ** \\ \hline \hline \end{tabular}  
* \(p<0.05\), ** \(p<0.01\).  
\end{table} 
Table 4: Test-Retest reliability of Co-Wis. \begin{table}
\begin{tabular}{c c c c c} \hline \hline \multicolumn{1}{c}{**Co-Wis**} & \multicolumn{3}{c}{**Traditional Assessment (SNSB-II)**} & \multirow{2}{*}{\(\mathbf{r}\)} \\ \hline
**Subtest** & **Mean (SD)** & **Subtest** & **Mean (SD)** & \\ \hline Word memory (immediate) & 11.39 (4.98) & SVLT-E (immediate) & 13.87 (5.64) & 0.607 ** \\ Word memory (delay) & 1.69 (2.20) & SVLT-E (delay) & 2.99 (2.77) & 0.534 ** \\ Word memory (recognition) & 5.88 (2.49) & SVLT-E (recognition) & 8.53 (3.02) & 0.409 ** \\ Word memory (total) & 18.96 (8.39) & SVLT-E (total) & 25.39 (9.76) & 0.654 ** \\ Figure drawing (immediate) & 14.81 (4.78) & RCFT (copy) & 26.14 (10.45) & 0.501 ** \\ Figure drawing (recall) & 4.65 (5.46) & RCFT (delay) & 8.50 (8.03) & 0.592 ** \\ Clock drawing & 2.24 (0.98) & Clock drawing & 2.32 (9.91) & 0.639 ** \\ Puzzle construction & 1.84 (1.82) & Clock drawing & 2.32 (0.91) & 0.468 ** \\ Four fundamental arithmetic (total) & 6.19 (3.30) & Calculation (total) & 8.74 (3.18) & 0.776 ** \\ Digit coding & 7.91 (6.83) & Digit coding & 8.74 (3.18) & 0.776 ** \\ Stroop (word) & 40.72 (17.15) & K-CWST-60 (word) & 51.87 (26.93) & 0.494 ** \\ Stroop (color) & 18.56 (14.97) & K-CWST-60 (color) & 27.89 (16.78) & 0.655 ** \\ Picture naming & 6.01 (1.99) & S-K-BNT & 10.11 (2.98) & 0.664 ** \\ Verbal fluency (total) & 31.06 (16.99) & COWAT (total) & 38.47 (21.17) & 0.793 ** \\ Trail making (A type) & 47.91 (56.66) & Trail making (A type) & 56.05 (55.88) & 0.422 ** \\ Trail making (B type) & 135.04 (115.67) & Trail making (B type) & 145.04 (112.74) & 0.798 ** \\ \hline \hline \end{tabular}  
* \({}^{1}\)* \(p<0.05\), ** ** \(p<0.01\)  
\end{table} 
Table 3: Concurrent validity of Co-Wis. The Kaiser-Meyer-Olkin (KMO) result was 0.928, meaning that the number of variables and cases used in the exploratory factor analysis was appropriate. [PERSON]'s test results suggested that factor analysis was appropriate (\(p<0.05\)). The five criteria in the cognitive domain had a commonality of 0.3 for all the Co-Wis subtests, indicating a high commonality among the items (Table 6).