An Evaluation of Coding Systems for Estimating Populations of the Shaft Louse, Menopon gallinae
- 1 February 1961
- journal article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 54 (1) , 74-76
- https://doi.org/10.1093/jee/54.1.74
Abstract
The louse populations on 79 individual chicken hens were rated by four coding systems. The lice were then removed from each chicken and counted. The resulting numbers were subjected to several statistical tests which indicated that there were linear relationships between the numerical symbols of the coding systems and the louse infestations they arbitrarily represented. It was also found that due to improper spacing of values the accuracy of one coding system was inferior to the other three.Keywords
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