In science, attrition are
ratios
In mathematics, a ratio () shows how many times one number contains another. For example, if there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six (that is, 8:6, which is equivalent to th ...
regarding the loss of participants during an
experiment
An experiment is a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried. Experiments provide insight into cause-and-effect by demonstrating what outcome occurs whe ...
. Attrition rates are values that indicate the participant drop out. Higher attrition rates are found in
longitudinal studies.
See also
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Intention-to-treat analysis
In medicine an intention-to-treat (ITT) analysis of the results of a randomized controlled trial is based on the initial treatment assignment and not on the treatment eventually received. ITT analysis is intended to avoid various misleading artifac ...
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Further reading
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* {{cite book , first=Jeffrey M. , last=Wooldridge , title=Econometric Analysis of Cross Section and Panel Data , location=Cambridge , publisher=MIT Press , year=2010 , pages=837–842 , url=https://books.google.com/books?id=hSs3AgAAQBAJ&pg=PA837 , isbn=9780262296793
Experiments