Dr Stott Is a Researcher Interested in Examining the Association

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

A) test-retest reliability.
B) interrater reliability.
C) internal validity.
D) interrater validity.