Table 3.

Central Tendency for the CTOPP, Woodcock, and DAPA-AP

Assessment	Mean	SD	Median	Skew
Letter–sound knowledge	14.06	9.74	16.00	–0.44
	[9.65, 18.53]	[6.79, 11.25]	[5.01, 22.00]	[–1.31, 0.40]
CTOPP
Sound matching	10.18	5.90	11.00	–0.14
	[7.47, 13.00]	[4.27, 6.99]	[6.00, 15.00]	[–0.94, 0.61]
Elision	2.53	3.48	1.00	1.95
	[1.18, 4.39]	[1.52, 4.93]	[0, 3.00]	[.35, 2.96]
Blending words	6.47	5.01	6.00	0.70
	[4.43, 8.94]	[3.04, 6.34]	[3.50, 8.00]	[–0.50, 1.43]
Rapid letter naminga	74.62	28.52	69.12	0.23
	[61.50, 87.96]	[20.82, 33.60]	[51.50, 98.00]	[–0.62, 1.16]
Woodcock Johnson
Word identification	24.76	23.27	20.00	0.69
	[14.56, 36.62]	[15.50, 28.06]	[6.50, 47.00]	[–0.18, 1.69]
Word attack	6.12	10.39	0.00	1.85
	[2.06, 11.76]	[3.89, 14.00]	[0, 7.00]	[0.61, 3.61]
DAPA-AP
Onset	2.29	0.96	2.67	–1.24
	[1.85, 2.71]	[0.52, 1.21]	[1.67, 3.00]	[–2.63, –0.24]
Rime	2.43	0.98	3.00	–1.64
	[1.96, 2.84]	[0.37, 1.27]	[2.33, 3.00]	[–3.50, –0.50]
Coda	2.46	0.91	3.00	–1.84
	[2.00, 2.84]	[0.32, 1.23]	[2.22, 3.00]	[–3.35, –0.64]
Vowel	2.15	1.00	2.17	–0.83
	[1.70, 2.59]	[0.61, 1.21]	[1.67, 3.00]	[–1.79, 0.09]
DAPA-AP total	9.33	3.70	11.17	–1.40
	[7.57, 10.90]	[1.70, 4.66]	[8.72, 12.00]	[–2.75, –0.45]

Note. Numbers in brackets are bootstrapped 95% confidence intervals.

^aCalculations based on n = 15 because of missing data.