Torrance Tests of Creative Thinking

The Torrance Tests of Creative Thinking, formerly the Minnesota Tests of Creative Thinking, is a test of creativity built on J. P. Guilford's work and created by Ellis Paul Torrance. The Torrance Tests originally involved simple tests of divergent thinking and other problem-solving skills, which were scored on four scales: Fluency - the total number of interpretable, meaningful, and relevant ideas generated in response to the stimulus, Flexibility - the number of different categories of relevant responses, Originality - the statistical rarity of the responses, and Elaboration - the amount of detail in the responses.

Source: Wikipedia — Torrance Tests of Creative Thinking (CC BY-SA 4.0)