College students' response to Picture Creativity Test, Unique Uses Test, and Unreal Imagination Test was evaluated according to four criteria; fluency, flexibility, originality, elaboration. A factor analysis indicated, contrary to a conventional assumption, factors composed of the scores within the test types rather than those composed of the scores that shared criteria over the test types. This factor structure justified creation of standardized summation scores for each test type; Picture Creativity Score, Unique Uses Score, and Unreal Imagination Score. Their correlational pattern with the Need for Uniqueness and Sensation Seeking was examined for a better understanding of the nature of those creativity scores. Implications of these analyses to the future research of creativity are discussed.