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Stratified Sampling

Known as: stratified sample 
National Institutes of Health

Papers overview

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2017
2017
BackgroundWith the expansion and growth of research on neighbourhood characteristics, there is an increased need for direct… 
2013
2013
Observational studies are frequently conducted to compare the effects of two treatments on survival. For such studies we must be… 
2013
2013
Background: An important question in the design of experiments is how to ensure that the findings from the experiment are… 
2004
2004
Random, stratified, systematic and adaptative sampling designs were analyzed compar- atively using data of benthic invertebrate…