What's a real-world manifestation of the #conjunctionFallacy?

A contrived case:

"Linda is 31 years old, single, outspoken and very bright. She majored in philosophy. As a student, she was deeply concerned with issues of discrimination and social justice, and also participated in anti-nuclear demonstrations.

Which is more probable?
A. Linda is a bank teller.
B. Linda is a bank teller and is active in the feminist movement."

82% chose B (violating the conjunction rule)

https://psycnet.apa.org/doi/10.1037/0033-295X.90.4.293

Another #framingEffect?

In "The Allure of #Simplicity", Jack Justus, Samantha Wakil and I run three #experiments on people's evaluations of explanations.

Merely labeling explanations 'simpler' or 'simplest' made people more vulnerable to the #baseRateFallacy and the #conjunctionFallacy!

Jack and I present our data and conclusions at #PSA2022 on Saturday.

Abstract: https://psa2022.dryfta.com/85-information-for-attendees/news/abstract/public/496/the-allure-of-simplicity-framing-effects-and-theoretical-virtues

#xPhi #PhilSci #CogSci #DecisionScience #Rationality #Epistemology #Psychology #Science #SciComm #Virtue