A Study of Classification Scores of Hereford Cows

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Abstract
Subjective conformation scores of individual Hereford cows as given by four judges were analyzed to determine the agreement between judges, the repeatability of a judge on the same cow at different scoring dates, and to study the variation in scores of seven items of conformation. Within-season correlations indicate that judges were in general agreement. on the points of conformation scored. Judges seemed to agree more closely for items on which they must consider the entire animal. Judges were best able to recognize differences in overall-rating and least able to recognize differences in fore quarters. The correlations between repeated scores of a cow by the same judge were generally between 0.4 and 0.5 using this method of classification. Judges were able to agree more closely with one another on a particular classification date than they were able to agree with their previous scores. Although significant differences in judges scores existed, they were of minor importance in determining the total variance in conformation scores.
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