Test of Nonverbal Intelligence – Fourth Edition (TONI-4)

Purpose: To Measure intelligence

Age: 6-89

Time: 15 to 20 minutes

The Test of Nonverbal Intelligence – 4^th ed. (TONI-4) is a 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.

This test is ideal for those who have language, hearing, or motor impairments, or are not familiar with mainstream American culture.

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). All items are arranged in easy-to-difficult order. Each item contains one or more of the eight salient characteristics:

1. Shape
2. Position
3. Direction
4. Rotation
5. Contiguity
6. Shading
7. Size
8. Movement

Easier items contain one or two characteristics while more difficult items contain several. Both forms can also be used for research purposes and periodic re-evaluation.