Fixed effects ANOVA: An extension to samples with random size

Célia Nunes, Dário Ferreira, Sandra S. Ferreira, João Tiago Praça Nunes Mexia

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


In many relevant situations, such as in medical research, sample sizes may not be previously known. The aim of this paper is to extend one and more than one-way analysis of variance to those situations and show how to compute correct critical values. The interest of this approach lies in avoiding false rejections obtained when using the classical fixed size F-tests. Sample sizes are assumed as random and we then proceed with the application of this approach to a database on cancer.
Original languageEnglish
Pages (from-to)2316-2328
JournalJournal of Statistical Computation and Simulation
Issue number11
Publication statusPublished - Nov 2014


  • critical values
  • orthogonal ANOVA
  • random degrees of freedom
  • random sample sizes


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