Congruence Bias

Congruence bias is similar to confirmation bias in that both occur due to reliance on direct testing of hypotheses rather than utilizing indirect testing methods. What this means is that hypotheses are tested and retested under the exact same methods as the original experiment which repeatedly yields the same results as opposed to testing and observing the same circumstances in the real world.

A simple example of this could be an experiment with dropping objects of different weights. Under laboratory circumstances these experiments would yield the same results every time but if performed outside wind or other factors could interfere with the rate at which an object falls and generate different results.