Peer-Reviewed Journal Details
Mandatory Fields
Hayes, K; Kinsella, T
2003
Journal Of The Royal Statistical Society Series D-The Statistician
Spurious and non-spurious power in performance criteria for tests of discordancy
Published
()
Optional Fields
discordancy tests grubbs's outlier test Outlier power simulation spurious power spurious type II error test performance criteria type II error
52
69
82
When evaluating the performance of discordancy tests both the type 11 error and the power function contain spurious and non-spurious elements as the test may not identify the contaminant observation. The probabilities that are associated with identifying as discordant a good observation and a contaminant observation are defined as spurious power and nonspurious power respectively. This nomenclature conveys the role of each as performance criteria for tests of discordancy. A general discussion of discordancy test performance criteria is presented, as is the case of tests for multiple outliers. Finally, the behaviours of the Grubbs single-outlier and multiple-outlier tests are studied using simulation.
0039-0526
10.1111/1467-9884.00342
Grant Details