The analysis of contact sampling data
- 1 January 1980
- journal article
- Published by Springer Nature in Oecologia
- Vol. 45 (3) , 322-324
- https://doi.org/10.1007/bf00540199
Abstract
Use of the chi-square statistic for investigating interspecific association has been incorrectly applied to the contact sampling method because of an invalid probability argument. The usual method of calculating expected frequencies leads to a large overestimation and hence bias towards negative association. A correct method of analysis is presented and discussed.Keywords
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