The Relation Between Birth Order and Confidence in Expressed Judgments

Abstract

The aim of this study was to establish whether a relation between confidence in judgments and decisions is affected when individuals are made aware of their birth order position. Students from The University of Arizona were recruited and asked to give upper- and lower-bound ranges for a guess before and after a subtle birth order reminder. Participants also completed The General Decision Making Style questionnaire to determine whether any style correlated with birth order position. It was discovered that no statistically significant relationship was found between reminder of birth order position and confidence in decisions made. The General Decision Making Style Questionnaire indicated a significant relationship between age and the intuitive style.