In psychology, idiographic refers to an approach that focuses on understanding individuals' unique characteristics, experiences, and behaviors. It emphasizes studying specific cases in detail to gain insight into the complexity of an individual's psychological makeup, rather than generalizing findings across a group of people. This approach aims to capture the richness and depth of human experience.

Biological psychology is generally nomothetic. The nomothetic approach aims to even out individual differences so that the observations lack bias. This justifies generalising the findings of such research. Because biological psychology research is primarily experimental, a nomothetical stance is assumed simply because researchers (using a psychobiological approach) are looking for typical behaviour, not unique behaviour - thus looking for data with which to apply a generalisation to all people, or most people.

The new president gave nomothetic laws.

Nomothetic is a Greek derivation meaning proposition of the law in general or universal. The word is used in philosophy.

Nomothetic leadership is a leadership approach that focuses on identifying general principles and patterns that can be applied universally to different situations. It emphasizes creating systems and processes that can be replicated by others to achieve successful outcomes. Nomothetic leaders prioritize consistency, standardization, and efficiency in their approach to leadership.