## 3 Results
### Attention Assessment
A chi-squared test was performed to analyze changes in ADHD symptoms before and after the intervention. The results show that, in interference selection, the experimental group using the story-based intervention had a significantly higher rate of symptom improvement than the control group using the short-answer intervention (\(p\) = 0.025) (Table 3). \begin{table}
\begin{tabular}{c c c c c c c} \hline  & & \multicolumn{2}{c}{**Experimental Group (N = 20)**} & \multicolumn{2}{c}{**Control Group (N = 20)**} & \multirow{2}{*}{\(p\)**-Value**} \\ \cline{3-6}  & & **Mean** & **SD** & **Mean** & **SD** & \\ \hline \multirow{5}{*}{Simple selection (visual)} & Baseline & 0.28 & 0.38 & 0.36 & 0.31 & 0.491 \({}^{*}\) \\ \cline{2-6}  & Four weeks & 0.87 & 0.38 & 0.36 & 0.31 & 0.754 \({}^{*}\) \\ \cline{2-6}  & \(p\)-value & \multicolumn{2}{c}{0.151 **} & \multicolumn{2}{c}{0.110 **} & \multicolumn{2}{c}{0.044 ***} \\ \cline{2-6}  & Change rate & \(-\)141.67 & \(-\)393.55 & \(-\)35.71 & \(-\)28.95 & 0.028 \({}^{*}\) \\ \cline{2-6}  & & N & \% & N & \% & \\ \cline{2-6}  & Deterioration & 8 & 40.0 & 5 & 25.0 & \\ \cline{2-6}  & Pre-post & \multirow{2}{*}{No change} & \multirow{2}{*}{0} & \multirow{2}{*}{1} & \multirow{2}{*}{5.0} & \multirow{2}{*}{0.854 ***} \\ \cline{2-6}  & change & & & & & \\ \cline{2-6}  & Improvement & 12 & 60.0 & 14 & 70.0 & \\ \hline \end{tabular}
\end{table} 
Table 3: The change rate of the attention response style index. The total K-ARS score, inattention, and hyperactivity-impulsivity scores and their respective rates of change are presented in Table 4. The rate of change in K-ARS scores was calculated using the following formula:  
\[\text{Change rate}=\frac{(\text{Baseline K}-\text{ARS})-(4\text{ weeks K}-\text{ARS})}{\text{Baseline K}-\text{ARS}}\times 100\]  
A significant reduction in scores was observed in the experimental group using NeuroWorld DTx for the K-ARS inattention, K-ARS hyperactivity-impulsivity, and K-ARS total scores after four weeks (\(p\) = 0.008, \(p\) = 0.010, and \(p\) = 0.026, respectively), whereas no significant differences were noted in the control group (\(p\) > 0.05). After adjusting for baseline effects, the experimental group that received the story-based intervention showed a significantly greater reduction in K-ARS hyperactivity-impulsivity and K-ARS total scores than the control group at the four-week follow-up (\(p\) = 0.018 and \(p\) = 0.012, respectively). Furthermore, the change rates for the K-ARS hyperactivity-impulsivity and K-ARS total scores were significantly higher in the experimental group (\(p\) = 0.002 and \(p\) = 0.025, respectively; Figure 4). \begin{table}
\begin{tabular}{c c c c c c c} \hline  & & \multicolumn{2}{c}{**Experimental Group (N = 20)**} & \multicolumn{2}{c}{**Control Group (N = 20)**} & \multirow{2}{*}{\(p\)-Value**} \\ \cline{3-5}  & & **Mean** & **SD** & **Mean** & **SD** & \\ \hline Baseline & 0.72 & 0.54 & 0.47 & 0.20 & 0.084 \({}^{*}\) \\ \cline{2-5}  & Four weeks & 0.86 & 0.74 & 0.62 & 0.32 & 0.490 \({}^{*}\) \\ \cline{2-5}  & \(p\)-value & & 0.460 \({}^{**}\) & & 0.140 \({}^{**}\) & & 0.579 \({}^{***}\) \\ \cline{2-5} Simple selection (auditory) & Change rate & \(-\)19.44 & \(-\)64.44 & \(-\)31.91 & \(-\)60.00 & 0.549 \({}^{*}\) \\ \cline{2-5}  & & N & \% & N & \% & \\ \cline{2-5}  & \( \begin{array}{c}\text{Deterioration}\\ \text{change}\end{array} \) & 2 & 10 & 6 & 30 & \\ \cline{2-5}  & \( \begin{array}{c}\text{Pre-post}\\ \text{change}\end{array} \) & No change & 3 & 15 & 0 & 0 & 0.451 \({}^{***}\) \\ \cline{2-5}  & \( \begin{array}{c}\text{Improvement}\\ \text{Baseline}\end{array} \) & Improvement & 15 & 75 & 14 & 70 & \\ \hline \multirow{6}{*}{ \begin{tabular}{c} Interference selection \\ \end{tabular}  } & Baseline & 0.70 & 0.08 & 0.77 & 0.21 & 0.742 \({}^{*}\) \\ \cline{2-5}  & Four weeks & 0.67 & 0.15 & 0.57 & 0.27 & 0.212 \({}^{*}\) \\ \cline{2-5}  & \( \begin{array}{c}\text{$p$-value}\\ \end{array} \) & 0.620 \({}^{**}\) & & 0.001 \({}^{**}\) & & 0.143 \({}^{***}\) \\ \cline{2-5}  & \(