The Form Board test involves giving participants a shape and a set of smaller shapes which they are then instructed to determine which combination of small shapes will fill the larger shape completely without overlapping.
2.
He also introduced a form board test ( called the Geographical Puzzle, or G Test ), which involved fitting pieces into proper places on a board, requiring both motor coordination as well as decision making.
3.
Using the " Otis Self-Administering Test of Mental Ability ", " the Detroit Manual Ability Task ", " the Healy Pictorial Completion II ", " the Minnesota Paper Form Board Test ", " the Woodworth-Matthews Personal Data Sheet ", " the Personal Index ", " The Vineland Social Maturity Scale ", " An Adaptation of the C . E . I . Pupil Data Sheet ", and case histories of the delinquents he investigated psychological aspects of delinquent and non-delinquent Negro boys.