The base rate fallacy reconsidered: Descriptive, normative, and methodological challenges

JJ Koehler - Behavioral and brain sciences, 1996 - cambridge.org
We have been oversold on the base rate fallacy in probabilistic judgment from an empirical,
normative, and methodological standpoint. At the empirical level, a thorough examination of …

Why do frequency formats improve Bayesian reasoning? Cognitive algorithms work on information, which needs representation

G Gigerenzer - Behavioral and Brain Sciences, 1996 - cambridge.org
In contrast to traditional research on base-rate neglect, an ecologically-oriented research
program would analyze the correspondence between cognitive algorithms and the nature of …

The purpose of experiments: Ecological validity versus comparing hypotheses

RM Dawes - Behavioral and Brain Sciences, 1996 - cambridge.org
As illustrated by research Koehler himself cites (Dawes et al. 1993), the purpose of
experiments is to choose between contrasting explanations of past observations–rather than …

Physicians neglect base rates, and it matters

RM Hamm - Behavioral and Brain Sciences, 1996 - cambridge.org
A recent study showed physicians' reasoning about a realistic case to be ignorant of base
rate. It also showed physicians interpreting information pertinent to base rate differently …

The implicit use of base rates in experiential and ecologically valid tasks

BA Spellman - Behavioral and Brain Sciences, 1996 - cambridge.org
When base rates are learned and used in an experiential manner subjects show better base
rate use, perhaps because the implicit learning system is engaged. A causal framework in …

The base rate controversy: Is the glass half-full or half-empty?

G Keren, LJ Thijs - Behavioral and Brain Sciences, 1996 - cambridge.org
Setting the two hypotheses of complete neglect and full use of base rates against each other
is inappropriate. The proper question concerns the degree to which base rates are used (or …

Judgment under uncertainty: Evolution may not favor a probabilistic calculus

LR Ginzburg, C Janson, S Ferson - Behavioral and Brain Sciences, 1996 - cambridge.org
The environment in which humans evolved is strongly and positively autocorrelated in space
and time. Probabilistic judgments based on the assumption of independence may not yield …

Base rates, experience, and the big picture

SE Edgell, RM Roe, CH Dodd - Behavioral and Brain Sciences, 1996 - cambridge.org
The important question is how people process probabilistic information, not whether they
process it in accordance with a normative model that we never should have expected them …

Which reference class is evoked?

CRM McKenzie, JB Soll - Behavioral and Brain Sciences, 1996 - cambridge.org
Any instance (ie, event, behavior, trait) belongs to infinitely many reference classes, hence
there are infinitely many base rates from which to choose. People clearly do not entertain all …

Fallacy and controversy about base rates

I Levi - Behavioral and Brain Sciences, 1996 - cambridge.org
Koehler's target article attempts a balanced view of the relevance of knowledge of base
rates to judgments of subjective or credal probability, but he is not sensitive enough to the …