A researcher is interested in examining the association between how humourous children are and their school achievement. Two observers go to children's homes and judge children as "not funny at all," "slightly funny," or "very funny." On comparison of the observers' judgments, it is apparent that the observers have a high level of disagreement as to children's humour level. This measure of humour level has poor:

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Interrater reliability refers to the degree of agreement between multiple observers or raters assessing the same variable. In this case, since there is a high level of disagreement between the two observers, it indicates poor interrater reliability. Test-retest reliability refers to the consistency of scores over time, which is not relevant here because the observers assessed the children only once. Internal validity refers to the degree to which the study design is free from confounding factors or biases, which is not directly relevant to the issue of interrater reliability. Interrater validity is not a commonly used term in psychometric research.

A Researcher Is Interested in Examining the Association Between How