Environmental Science
5 years ago

New test improves accuracy in studying species occurrence for ecology research.

Australian & New Zealand Journal of Statistics
The score test for the two‐sample occupancy model
Natalie Karavarsamis, Gurutzeta Guillera‐Arroita, Richard Huggins, Byron J. T. Morgan

Paper Summary

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The score test for comparing two sets of data on species occurrence in ecology can be problematic when using observed information. The test may give inconsistent results when populations being compared are very different. By modifying the test to consider negative values and using a different cut-off point, the new test is as powerful as other common tests and gives more reliable results.