Who classified human instincts into fourteen types?

Concept

An instinct theory explains behaviour through inherited propensities that are activated by relevant situations.

Such a theory may group these innate propensities and relate each one to a characteristic emotion and pattern of action.

Application

William McDougall proposed a scheme of fourteen innate instincts, each paired with a corresponding emotion. This directly matches the classification described in the question.

Contrast

• Drever wrote on general psychology and psychological terminology, but this fourteen-instinct classification is not attributed to him.

• Thorndike is chiefly associated with connectionism and the law of effect in learning.

• Woodworth is associated with dynamic psychology and the stimulus-organism-response formulation.

Cross-check

Independent university teaching materials explicitly state that McDougall postulated or identified fourteen basic innate instincts.

Therefore, the classifier was William McDougall.