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).
Dale B. Harris revised and broadened the test, now known as the Goodenough–Harris Drawing Test. The revisions are detailed in his 1963 publication Children's Drawings as Measures of Intellectual Maturity.