Linked Life Data

14524226

Source:http://linkedlifedata.com/resource/pubmed/id/14524226

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2003-10-3
pubmed:abstractText
The use of differential statistics to test for treatment effect with data from experiments where either treatments were not replicated (though samples may be) or replicates are not statistically independent leads to serious methodological problem. This problem, discovered by Hurbert (1984), is called pseudoreplication. Due to unknown reasons, pseudoreplication issue was completely overlooked by the Russian ecologists, in spite of the fact that the international scientific community is aware of pseudoreplication for almost twenty years. As the result, up to 47% of the experimental ecological papers, published in six Russian academic journals (Botanicheskij zhurnal, Ekologia, Izvestija RAN Ser. Biol., Lesovedenie, Zhurnal Obshchei Biologii, Zooligicheskij zhurnal) in 1998-2001, are pseudoreplicated; this proportion is nearly twice as high as the proportion of pseudoreplicated studies in international journals during 1960-1980, e.g. before the problem was discovered by Hurlbert (1984). This situation is alarming, especially because a substantial part of pseudoreplication arise from incorrect use of statistics, not from incorrect designing of experiments. By using several examples from the recent papers of Russian ecologists I shortly review the situations where pseudoreplication may occur and discuss some aspects of the experimental design, which are critical for correct processing and interpretation of ecological data.
pubmed:commentsCorrections
pubmed:language
rus
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0044-4596
pubmed:author
pubmed:issnType
Print
pubmed:volume
64
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
292-307
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:articleTitle
[Pseudoreplication in ecological research: the problem overlooked by Russian scientists].
pubmed:affiliation
Section of Ecology, Department of Biology, University of Turku, 20014 Turku, Finland. mikoz@utu.fi
pubmed:publicationType
Journal Article, English Abstract, Review