The Otis Quick-Scoring Mental Ability Tests are designed to "measure mental ability - thinking power or the degree of maturity of the mind."
- 1 Manual of Directions for Gamma Test
- 1 Manual of Directions for Beta Test
- 1 Form for Gamma Test: Form Bm
- 1 Form for Beta Test: Form A
- 1 Scoring Key for Gamma Test: Forms Am, Bm, Em and Fm
- 1 "Tables for Deriving IQ's on" sheet
- 1 Class Record sheet for Beta and Gamma Tests
Harcourt, Brace and World.