## 2 Materials and Methods
### Reading Tasks
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline
**Grade** & **Reading** & **Text** & **N** & **Age** & **Non-Verbal** & **Receptive** & **Expressive** \\  & **Condition** & **Type** & **N** & **(Months)** & **Intelligence1** & **Vocabulary2** & **Vocabulary2** \\ \hline \multirow{4}{*}{2} & \multirow{4}{*}{R} & \multirow{4}{*}{Fiction} & 26 & 94.23 & 120.00 & 104.50 & 98.50 \\  & & & (M = 11, F = 15) & (3.41) & (14.65) & (16.96) & (15.69) \\  & & & Non-fiction & 26 & 94.54 & 120.22 & 97.50 & 95.46 \\  & & & (M = 12, F = 14) & (3.54) & (14.75) & (13.98) & (9.31) \\ \cline{2-8}  & \multirow{4}{*}{AR} & \multirow{4}{*}{Fiction} & 28 & 94.21 & 119.13 & 96.64 & 94.82 \\  & & & (M = 16, F = 12) & (3.52) & (14.99) & (13.93) & (8.97) \\  & & & 27 & 94.37 & 120.06 & 103.37 & 97.26 \\  & & & (M = 15, F = 12) & (3.58) & (13.79) & (17.31) & (15.41) \\ \hline \multirow{4}{*}{3} & \multirow{4}{*}{R} & \multirow{4}{*}{Fiction} & 22 & 108.82 & 123.45 & 123.18 & 117.59 \\  & & & (M = 13, F = 9) & (4.41) & (12.47) & (19.08) & (19.43) \\  & & & 29 & 107.52 & 123.32 & 118.14 & 116.97 \\  & & & (M = 15, F = 14) & (3.14) & (14.47) & (16.43) & (19.93) \\ \cline{2-8}  & \multirow{4}{*}{AR} & \multirow{4}{*}{Fiction} & 27 & 108.00 & 123.04 & 120.26 & 117.74 \\  & & & (M = 13, F = 14) & (3.26) & (13.47) & (16.74) & (19.61) \\  & & & 21 & 108.95 & 122.71 & 123.81 & 117.57 \\  & & & (M = 13, F = 8) & (4.48) & (12.28) & (19.32) & (19.91) \\ \hline \multirow{4}{*}{4} & \multirow{4}{*}{R} & \multirow{4}{*}{Fiction} & 34 & 119.94 & 122.15 & 131.09 & 130.24 \\  & & & (M = 20, F = 14) & (3.08) & (11.49) & (16.66) & (21.26) \\  & & & 26 & 119.46 & 121.00 & 133.81 & 136.08 \\  & & & (M = 14, F = 12) & (3.52) & (10.89) & (15.15) & (20.56) \\ \cline{2-8}  & \multirow{4}{*}{AR} & \multirow{4}{*}{Fiction} & 24 & 119.13 & 120.65 & 133.63 & 137.67 \\  & & & (M = 13, F = 11) & (3.38) & (11.16) & (15.31) & (20.62) \\  & & & 32 & 119.91 & 121.84 & 130.50 & 129.78 \\  & & & (M = 18, F = 14) & (3.16) & (11.66) & (16.66) & (21.39) \\ \hline \multirow{4}{*}{5} & \multirow{4}{*}{R} & \multirow{4}{*}{Fiction} & 25 & 132.32 & 119.64 & 148.48 & 149.56 \\  & & & (M = 14, F = 11) & (2.64) & (11.38) & (17.70) & (16.73) \\  & & & 19 & 133.89 & 121.00 & 140.47 & 148.74 \\  & & & (M = 9, F = 10) & (3.21) & (14.64) & (16.90) & (16.10) \\ \cline{2-8}  & \multirow{4}{*}{AR} & \multirow{4}{*}{Fiction} & 20 & 133.85 & 121.16 & 141.10 & 149.65 \\  & & & (M = 10, F = 10) & (3.13) & (14.25) & (16.68) & (16.19) \\  & & & 25 & 132.20 & 119.08 & 147.76 & 151.68 \\  & & & (M = 14, F = 11) & (2.48) & (11.60) & (16.53) & (17.55) \\ \hline \multirow{4}{*}{6} & \multirow{4}{*}{R} & \multirow{4}{*}{Fiction} & 15 & 146.47 & 120.60 & 157.67 & 150.93 \\  & & & (M = 10, F = 5) & (3.48) & (8.34) & (16.38) & (14.38) \\ \cline{1-1} \cline{2-8}  & \multirow{4}{*}{Non-fiction} & 23 & 146.09 & 122.57 & 154.13 & 151.78 \\ \cline{1-1}  & & & (M = 10, F = 13) & (4.61) & (11.59) & (12.04) & (12.07) \\ \cline{1-1} \cline{2-8}  & \multirow{4}{*}{AR} & \multirow{4}{*}{Fiction} & 29 & 146.28 & 124.07 & 154.38 & 151.31 \\ \cline{1-1}  & & & (M = 14, F = 15) & (4.46) & (11.32) & (14.62) & (13.19) \\ \cline{1-1}  & & & 15 & 146.47 & 120.60 & 157.67 & 150.93 \\ \cline{1-1} \cline{2-8}  & \multirow{4}{*}{Non-fiction} & (M = 10, F = 5) & (3.48) & (8.34) & (16.38) & (14.38) \\ \hline \hline \end{tabular}  
* Standardized scores, assessed using the Korean Kaufman Brief Intelligence Test-2 [42], are presented. 2 Raw scores, assessed using the Receptive and Expressive Vocabulary Test [41], are presented. 4 Raw and six graduate students in the field of communication disorders. The  
\end{table} 
Table 1: Cont. KReaD analysis [43], which gauges text difficulty and provides an objective reading level assessment, was performed for each script. The results showed that the fictional texts had a KReaD index of 2.78 grade level and the non-fictional texts had a KReaD index of 5.29 grade level. The length of scripts differed across text types, while the number of sentences within each text type remained consistent.