Considerations of statistical power in infant studies of visual acuity development and docosahexaenoic acid status

When the significance of findings appears to depend on the particular population selected, it is important to consider that differences among studies in variability of the outcome measure and the antecedent variable may be involved. Another factor that increases the variability of an outcome measure...

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Bibliographic Details
Published in:The American journal of clinical nutrition 2000-01, Vol.71 (1), p.1-2
Main Authors: Tolley, E A, Carlson, S E
Format: Article
Language:English
Subjects:
Confounding Factors (Epidemiology)
Demographics
Docosahexaenoic Acids - blood
Editorials
Fatty Acids, Essential - administration & dosage
Humans
Infant, Newborn
Medical research
Reliability
Statistics
Visual Acuity
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Summary:When the significance of findings appears to depend on the particular population selected, it is important to consider that differences among studies in variability of the outcome measure and the antecedent variable may be involved. Another factor that increases the variability of an outcome measure is the number of testers.
ISSN:0002-9165
1938-3207
DOI:10.1093/ajcn/71.1.1