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Date: | Thu, 8 Dec 2011 13:10:49 -0500 |
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Pseudoreplication is defined as the use of inferential statistics to test
for treatment effects
with data from experiments where either treatments are not replicated
(though samples may be) or
replicates are not statistically independent.
A classic paper on this is:
Ecological Monographs 54(2), 1984,pp. 187-2~$3 1984 by the Ecological
Society of America 11
PSEUDOREPLICATION AND THE DESIGN OF ECOLOGICAL FIELD EXPERIMENTS
STUART H. HURLBERT
Department of Biology, San Diego State University,
San Diego, California 92182 USA
In 1984, Hurlbert stated: "Scrutiny of 176 experimental studies published
between 1960 and the present revealed that pseudoreplication occurred in
27% of them, or 48% of all such studies that applied inferential statistics.
The incidence of pseudoreplication is especially high in studies of marine
benthos and small mammals."
Personally, I'd add bee studies to the list of high incidence of
pseudoreplication, based on many of the field studies that I have read,
Jerry
(Note, I learned about this in the early 1980s when I had a summer
internship with three of the experts in this field)
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