Dale B. Harris later revised and extended the test and it is now known as the Goodenough–Harris Drawing Test. The revision and extension is detailed in his book Children's Drawings as Measures of Intellectual Maturity (1963).
The Goodenough–Harris Drawing Test was initially developed by Dale B. Harris, but he later refined and expanded it, which is documented in his book Children's Drawings as Measures of Intellectual Maturity (1963).