- Ages: 6;0 through 89;11
- Testing Time: 15 to 20 minutes
- Administration: Individual
- TONI-4 Complete Kit: Examiner's Manual, Picture Book, Critical Reviews and Research Findings (1982-2009), 50 Form-A Answer Booklets and Record Forms, and 50 Form-B Answer Booklets and Record Forms. (2010)
- Qualification Level: B
The Test of Nonverbal Intelligence – Fourth Edition (TONI-4) is a practical, easy-to-use, norm-referenced instrument that measures an individual’s intelligence. The administration and response format is 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 with language, hearing, or motor impairments or those not familiar with mainstream American culture. Data collected represents a normative sample of 2,272 people residing in 33 states.
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 appear in an easy-to-difficult order with each item containing one or more of eight salient characteristics:
TONI-4 features include:
- All new normative data that ensures proper representation of demographic changes in the U.S. population.
- Stratification variables of the four geographic regions in which subjects reside, their gender, race and ethnicity, parental education, and family/household socioeconomic status.
- Analyzes potential biases in test items related to gender, ethnicity, disability, and race.
- Additional test reliability and validity for the entire normative sample and for specific subgroups of the sample account for cognitive ability, race, ethnicity, and gender.
- All test items were reevaluated using both item analytic techniques and differential item functioning analyses.
- Floor effects were eliminated in the 4th edition.
- Provides verbal and pantomime directions.
- Instructions in seven languages in addition to English: Spanish, French, German, Chinese, Vietnamese, Korean, and Tagalog.
Easier items contain one or two characteristics, while the more difficult items contain several. Use either or both forms for periodic reevaluation and research purposes.