Hi friends.<br><br>One of my Doctoral has submitted a research proposal wherein she plans to trace the early speech and language development in operated cleft palate children. She plans to compare this development with normally developing children. She has proposed to take 5 children in each group/ But the ethics committee has advised to increase the number of subjects..What should be ideal number in cases of longotidinal studies? I would appreciate to get some clarification and suggestions from the group.<br>
<br>Thanks<br>Dr.Vaidyanathan<br>
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