[2] The Hartman Personality Profile is based on the notion that all people possess one of four driving "core motives".
[4] Although demographic groups vary, Hartman suggests that Reds comprise 25% of the population; Blues 35%; Whites 20%; and Yellows 20%.
[6][failed verification] The Hartman Institute and its many subsidiaries offer "coaches" to businesses seeking to improve interpersonal relations, for career counselling, or to collect data for use in hiring practices.
[7] The test informally[clarification needed] passes most psychometric measures of reliability and face validity,[8] but this may be attributed to the open predictability of the test.
Although internal and small sample corporate-sponsored data have been reported,[9] no peer-reviewed studies of the psychometric value of the test exist.