Chapter 13: Reliability

NoteComing soon

This chapter is planned but not yet written. The outline below shows what it is intended to cover.

[13a] Internal Consistency

Topics

  • True scores, measurement error, and reliability
  • Cronbach’s alpha and why it is often the wrong choice
  • McDonald’s omega

[13b] Raters & Attenuation

Topics

  • Intraclass correlations for rater agreement
  • Test–retest reliability
  • How unreliable predictors attenuate regression slopes
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