Random effects in paired-comparison experiments using the Bradley-Terry model.

J F Lancaster; D Quade

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PubMed · 6871353

Random effects in paired-comparison experiments using the Bradley-Terry model.

J F Lancaster·D Quade

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Abstract

The Bradley-Terry model for paired-comparison experiments assumes that the parameters for treatment ratings are the same for each comparison. We generalize this model by envisioning a population of judges from which a sample is taken to perform the experiment. The preference parameters can then be treated as random variables, and this induces a correlation between outcomes involving the same judge. Such a model may be helpful in isolating variation due to judges, from true variation in the treatments, as well as in accounting for the nonindependence of judgments.

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J F Lancaster, D Quade. 1983. Random effects in paired-comparison experiments using the Bradley-Terry model.. https://pubmed.ncbi.nlm.nih.gov/6871353/

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