Authors: Shippen ME, Reilly A, Dunn C
Title: The Effect of the Intensity of Spelling Instruction for Elementary Students At Risk for School Failure
Source: Journal of Direct Instruction 2008 8(1): 19-28
Year: 2008
Research Design: Randomised Controlled Trial
Rating Score: 03/10
This rating is confirmed
Eligibility specified - Y
Random allocation - Y
Concealed allocation - N
Baseline comparability - N
Blind subjects - N
Blind therapists - N
Blind assessors - N
Adequate follow-up - Y
Intention-to-treat analysis - N
Between-group comparisons - Y
Point estimates and variability - N

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