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. Author manuscript; available in PMC: 2018 Jan 1.
Published in final edited form as: Read Writ Q. 2016 Dec 20;33(5):484–499. doi: 10.1080/10573569.2016.1250142

Table 3.

Effect Sizes for Intervention Conditions and Control Group Controlling for Pretest and Gender

Spelling Handwriting Combination
Total Number of Words Written 0.34 0.52 0.39
Correct Word Sequences 0.57 0.71 0.84
Experimental Spelling Task 0.64 0.12 0.16
Woodcock-Johnson Spelling 0.68 0.16 0.21
WIAT-III Alphabet Writing Fluency 0.07 0.31 −0.45
Sentence Copying 0.07 0.34 0.07

Note. WIAT-III = Wechsler Individual Achievement Test – Third Edition.