The reliability of a two-item scale: Pearson, Cronbach, or Spearman-Brown?
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Summary
There is some disagreement, however, what the most appropriate indicator of scale reliability is when a measure is composed of two items and the most frequently reported reliability statistic for multiple-item scales is Cronbach's coefficient alpha.
- Type
- article
- Published
- 2013-08-01
- Cited by
- 2,505
- References
- 22
- Access
- Open access
- OpenAlex
- https://openalex.org/W1995949104
- Semantic Scholar
- https://api.semanticscholar.org/CorpusID:215730043
Keywords
Cronbach's alpha, Reliability (semiconductor), Scale (ratio), Public health, Pearson product-moment correlation coefficient
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- Is More Ever Too Much? The Number of Indicators per Factor in Confirmatory Factor Analysis.
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- Measurement
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