TABLE 2.

Means (and SD) of the success scores (%) of spelling function by word frequency, grade and demarcated function envelope.

		Non-demarcated envelope		Demarcated envelope
Word frequency	Grade	Mean	SD	Mean	SD
Non-frequent words	Second	42.75%	13.13	81.80%	8.13
	Fourth	59.85%	14.00	88.13%	7.75
	Seventh	75.79%	15.57	95.14%	2.89
	Tenth	85.78%	7.07	98.73%	0.79
Frequent words	Second	46.38%	19.43	86.02%	8.12
	Fourth	70.45%	21.32	92.35%	6.31
	Seventh	83.33%	11.79	97.60%	1.99
	Tenth	89.71%	10.00	99.28%	0.36