Question

Research has shown human beings to be notoriously bad decision makers in general. which type of psychologist was most likely to have carried out this type of research

Answer 1

The answer to this question is: Cognitive
Cognitive research publishes new empirical and theoretical work covering all areas of Cognition. Since the researchers want to examine how human's make a decision in general, they need to cover all aspects that could affect that decision, such as personality, wealth, situation, intelligence, etc.