klayman-ha-1987-informational-value
IN premise — summaries/2026/08/24/wiki-Confirmation_bias-chunk-5.md
Created 2026-08-25T02:58:47+00:00
Klayman & Ha (1987) demonstrated that confirmation bias is not solely motivational; informational value and base-rate considerations also influence hypothesis-testing search strategy.
Summary
When people pick which evidence to look for, they are not simply chasing what confirms what they already think. They also rationally weigh how much new information a test would yield and how likely the hypothesis is to begin with, which means any model of human judgment needs to account for deliberate information-seeking, not just motivated reasoning.