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Test of Nonverbal Intelligence, Fourth Edition

Linda Brown, PhD, Rita J. Sherbenou, PhD, and Susan K. Johnsen, PhD

Measures intelligence
Paper and pencil
Age range:
6 years to 89 years
15-20 minutes
Qualification level:
A degree from an accredited 4-year college or university in psychology, counseling, speech-language pathology, or a closely related field plus satisfactory completion of coursework in test interpretation, psychometrics and measurement theory, educational statistics, or a closely related area; or license or certification from an agency that requires appropriate training and experience in the ethical and competent use of psychological tests. Close

The TONI 4 is a language-free nonverbal intelligence test with two equivalent forms that are appropriate for a wide age range.

Features and benefits

  • Administration and response format are pragmatic, with simple oral instructions requiring test takers to answer with gestures such as pointing, nodding, or blinking. Ideal for those who have language, hearing, or motor impairments or are not familiar with mainstream American culture.
  • Two equivalent forms each comprise 60 abstract/figural items. Each item contains one or more of eight salient characteristics: shape, position, direction, rotation, contiguity, shading, size, and movement.
  • Verbal and pantomime directions, along with instructions in Spanish, French, German, Chinese, Vietnamese, Korean, and Tagalog, are provided.

Technical information

  • Updated normative data (N = 2,272) are representative of U.S. Census statistics.
  • Floor effects are minimal.
  • Additional evidence of test reliability and validity is offered for the entire normative sample and for specific subgroups of the sample to account for cognitive ability, race, ethnicity, and gender.