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Methods for dealing with reaction time outliers.

Ratcliff, Roger·1993·Psychological Bulletin

Abstract

The effect of outliers on reaction time analyses is evaluated. The first section assesses the power of different methods of minimizing the effect of outliers on analysis of variance (ANOVA) and makes recommendations about the use of transformations and cutoffs. The second section examines the effect of outliers and cutoffs on different measures of location, spread, and shape and concludes using quantitative examples that robust measures are much less affected by outliers and cutoffs than measures based on moments. The third section examines fitting explicit distribution functions as a way of recovering means and standard deviations and concludes that unless fitting the distribution function is used as a model of distribution shape, the method is probably not worth routine use.

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Metadata

Authors
Ratcliff, R.
Venue
Psychological Bulletin
Published
1993
Volume
114
Issue
3
Pages
510-532
ISSN
  • 0033-2909 (ISSN-L)
  • 1939-1455
OpenAlex
W2113096305
Cited by
2,123
References
0
FWCI
9.72
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Methods for dealing with reaction time outliers. https://app.cochat.ai/papers/10.1037/0033-2909.114.3.510
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Ratcliff, R. (1993). Methods for dealing with reaction time outliers. Psychological Bulletin. https://doi.org/10.1037/0033-2909.114.3.510

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.