Authors: Berent GP, Kelly RR, Schmitz KL, Kenney P
Title: Visual input enhancement via essay coding results in deaf learners’ long-term retention of improved English grammatical knowledge
Source: Journal of Deaf Studies and Deaf Education 2009 14(2): 190-204
Year: 2009
Research Design: Non Randomised Controlled Trial
Rating Score: 02/10
This rating is confirmed
Eligibility specified - Y
Random allocation - N
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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