The Test of Nonverbal Intelligence - Fourth Edition (TONI-4) is a practical, norm-referenced instrument that measures an individual's intelligence. The administration and response format are pragmatic with simple oral instructions, requiring test takers to answer only with simple but meaningful gestures such as pointing, nodding, or blinking, making this test is ideal for those who have language, hearing, or motor impairments.
The TONI-4 has two equivalent forms: Form A and Form B. Each form consists of 60 items, all of which are abstract/figural (i.e., void of pictures or cultural symbols), thus educational, cultural, or experiential backgrounds will not adversely affect test results. All items are arranged in easy-to-difficult order.
The TONI-4 Picture Book includes items for both Form A and Form B, and is used during administration. Each item contains one or more of the eight salient characteristic (shape, position, direction, rotation, contiguity, shading, size and movement).
The Picture Book is used in conjunction with the corresponding Answer Booklet and Record Form during administration.