Porteus Maze

The Porteus Maze series is a brief, nonverbal test of mental ability that yields information useful in assessing a person’s ability to plan and to change problem-solving approaches. [...]

General Ability Measure for Adults (GAMA®)

The GAMA test (General Ability Measure for Adults) is a self-administered, timed test that uses abstract designs, shapes, and colors to help measure general ability. Normed on a census-based sample of[...]

Naglieri Nonverbal Ability Test®-Individual Administration (NNAT®-Individual)

While the NNAT-I is no longer available from Pearson, we do offer some alternatives for measuring non-verbal ability, for example the Raven’s 2 and the Wechsler Nonverbal Scale of Ability. If you would like to continue purchasing the NNAT-I, please visit the MHS[...]

Comprehensive Test of Nonverbal Intelligence, Second Edition (CTONI-2)

An individually administered measure of nonverbal reasoning.[...]

Raven’s Advanced Progressive Matrices™ (APM)

Raven’s APM measures high-level observation skills, clear thinking ability, and intellectual capacity as a non-verbal estimate of abstract reasoning or fluid intelligence.[...]

Raven’s Coloured Progressive Matrices™ (CPM)

Raven’s Coloured Progressive Matrices™(CPM) is one of the most heavily used cognitive assessments in published research studies. The world’s leading non-verbal assessment has a strong following across the globe and has been relied upon for decades as an effective tool.[...]

Raven’s Standard Progressive Matrices™ (SPM) and Raven’s Standard Progressive Matrices™ Plus (SPM Plus)

SPM Raven’s Standard Progressive Matrices™ and SPM Plus Raven’s Standard Progressive Matrices™ Plus are nonverbal tests of observation skills and clear-thinking ability. SPM and SPM Plus are versatile, having various research applications with children and adults.[...]

Wechsler Nonverbal Scale of Ability (WNV)

Wechsler® Nonverbal Scale of Ability (WNV™) is a nonverbal measure of ability for culturally and linguistically diverse groups. It is ideal for psychologists who need a nonverbal measure of ability for individuals who are neither English-language nor Spanish-language proficient or[...]


Beta-4 is a nonverbal measure of adult cognitive abilities. The test has a variety of occupational and educational applications and is great for use with diverse adult populations within a wide range of language skills and intelligence levels.[...]

Beta III

A nonverbal measure of cognitive abilities in adults[...]

Raven’s 2

Raven’s 2 conveniently assesses observational skills and ability in a variety of settings. It is suitable for non-verbal adults and children. The test is available in paper, digital or combination formats.[...]

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