Their differences in psychological type (she was an INFP and he was an ISTJ) inspired her mother, Katharine Cook Briggs, to keep studying differences among people and their actions.
اختلفت اختلافاتهم في النوع النفسي (كانت INFP وكان ISTJ) والدتها، كاثرين كوك بريجز، لمواصلة دراسة الاختلافات بين الناس وأفعالهم.