Kahneman & Tversky (1973) Report Having Participants Read Various Personality

Kahneman & Tversky (1973) report having participants read various personality descriptions and then estimate the likelihood or probability that a person was a member of one or another profession. They report:

A) Good use of prior odds in the "bare bones" situation
B) Stereotypic information biased the reported likelihood in the direction of the stereotype
C) Worthless information did not bias the reported likelihood; prior probabilities were retained unless the information was consistent with a stereotype.
D) The descriptive model deviated strongly from the normative model