Likert-type

The term is a modern eponym, formed by combining the surname of its inventor, Rensis Likert, with the word 'type'. Rensis Likert, an American organizational psychologist, developed this psychometric scaling method in the 1930s as a tool for measuring attitudes. The word 'type' originates from Greek 'typos', meaning a blow or impression, which evolved in Latin to signify a figure or model, and later in English to denote a category or kind. Thus, 'Likert-type' literally means "of the category or model invented by Likert," specifically describing a survey response format characterized by symmetric, graded levels of agreement or frequency.

Structure: likert (proper noun) + type (noun) - likert: A proper noun (surname) of German origin, referring to Rensis Likert, the American social psychologist who developed the scale. - type: From Latin 'typus', from Greek 'typos' (blow, impression, model). Functions as a noun meaning a category or form.