International Journal of Public Health

, Volume 58, Issue 4, pp 637–642 | Cite as

The reliability of a two-item scale: Pearson, Cronbach, or Spearman-Brown?

Hints & Kinks



The authors are grateful to William Revelle and an anonymous reviewer for helpful comments on a previous version of this manuscript and suggestions for improvements.


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Copyright information

© Swiss School of Public Health 2012

Authors and Affiliations

  • Rob Eisinga
    • 1
  • Manfred te Grotenhuis
    • 1
  • Ben Pelzer
    • 1
  1. 1.Radboud University NijmegenNijmegenNetherlands

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