Subtests are interesting and the subjects enjoy them. The test materials are attractive, well constructed, and very durable. Consists of a plastic plate embossed with simple geometric forms. A column down one side of the plate includes one sample of each of the six forms used. Consists of a block, doll, hand and ball, each of which is dissected into several pieces.
Objects are to be assembled.
Consists of four cubes, each of which has two smooth sides, two rough sides, and two sides diagonally bisected into half rough, half smooth. The blocks are arranged to form patterns identical to those appearing on plates prepared from the same materials. Subject identifies the missing parts. Pegs are inserted in the holes to form patterns. A fixed peg in the center hole serves as a reference point.