Best practices for repeated measures ANOVAs of ERP data: Reference, regional channels, and robust ANOVAs

Joseph Dien

Research output: Contribution to journalArticle

Abstract

Analysis of variance (ANOVA) is a fundamental procedure for event-related potential (ERP) research and yet there is very little guidance for best practices. It is important for the field to develop evidence-based best practices: 1) to minimize the Type II error rate by maximizing statistical power, 2) to minimize the Type I error rate by reducing the latitude for varying procedures, and 3) to identify areas for further methodological improvements. While generic treatments of ANOVA methodology are available, ERP datasets have many unique characteristics that must be considered. In the present report, a novelty oddball dataset was utilized as a test case to determine whether three aspects of ANOVA procedures as applied to ERPs make a real-world difference: the effects of reference site, regional channels, and robust ANOVAs. Recommendations are provided for best practices in each of these areas.

Original languageEnglish (US)
JournalInternational Journal of Psychophysiology
DOIs
StateAccepted/In press - Dec 27 2015
Externally publishedYes

Keywords

  • ANOVA
  • ERP
  • Statistics

ASJC Scopus subject areas

  • Neuroscience(all)
  • Neuropsychology and Physiological Psychology
  • Physiology (medical)

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