Table 2.

Descriptive statistics of all tasks.

Grade	Group	Visual search (M ± SD)	Word detection skill (M ± SD)	Reading fluency (M ± SD)	Reading comprehension (M ± SD)
2	DD	22.54 ± 3.78	−0.45 ± 1.54	161.72 ± 96.25	8.28 ± 3.45
	CA	21.15 ± 4.77	1.57 ± 1.47	306.09 ± 131.42	9.88 ± 4.28
4	DD	26.30 ± 4.45	2.26 ± 2.15	568.03 ± 231.82	15.85 ± 4.36
	CA	29.96 ± 5.19	3.97 ± 1.44	834.63 ± 346.88	21.14 ± 6.71
6	DD	32.44 ± 5.30	3.52 ± 2.12	700.50 ± 227.38	18.90 ± 6.09
	CA	35.70 ± 5.48	4.69 ± 2.05	1058.06 ± 333.69	26.77 ± 6.29

DD, developmental dyslexia, CA, chronological age-matched typically children. The score for visual search is calculated as (number of accurately circled targets − number of errors)/completion time. The score for word detection is calculated as (total words identified – errors)/completion time. The score for reading fluency is the number of Chinese characters contained in the correctly judged sentences. The reading comprehension score represents the points earned for correctly answering the questions.