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Test of Non-verbal Intelligence (TONI-4)

The Test of Non-verbal Intelligence, Fourth Edition (TONI-4) is a measure of assessing non-verbal intelligence. It is a norm-referenced test which taps into abstract reasoning and figural problem-solving. The task takes approximately 10–15 minutes.

Age range

6 years–adult

Who can use it?

Psychologists and teachers.

How is it used?

During the TONI, the administrator uses verbal and non-verbal instructions. The children are given a matrix in print and asked to point out which response choice would fit into the matrix. The matrix consists of four to eight stimuli over nine boxes, and the pool from which to choose includes six response choices or four sets of response choices.

What can it tell us?

The TONI-4 provides a raw and index score of the non-verbal intelligence of the child. This means that the child’s score can be compared with that of hearing peers of their age.


  • Quick and easy.
  • Can be used to measure progress from one year to the next.
  • Is well standardised in an American population.
  • Contains instructions for other languages.
  • Teachers can use it.
  • Instructions can be given via sign or gesture.


  • Scorers for normative data not independent.
  • While some children do well on the puzzle-like format, others may find it difficult if they’re not used to doing this style of work.
  • Can be intimidating or uninteresting to younger children as there are no pictures, colour, etc.

Is there a cost?


Where can I access it?