This article provides a review of the Wechsler Nonverbal Scale of Ability (WNV), a general cognitive ability assessment tool for individuals' aged 4 year 0 months through 21 years 11 months with English language and/or communicative limitations. The test targets a population whose performance on intelligence batteries might be compromised by standard verbal requirements. Specifically, it is intended for use with individuals from diverse backgrounds as well as those who have any type of language limitation due to, but not limited to, the presence of autistic disorders, developmental delays, instructional challenges, environmental challenges (i.e., lack of education), deafness or hard of hearing, and language-based learning disabilities including speech impairment and selective mutism (Wechsler & Naglieri, 2006). The theoretical foundation of the Wechsler scale is based on the premise that there is a single factor called "g" that can and should be measured using multiple domains to lead to a single measurement of general cognitive abilities; these are not differing types of intelligence, but rather different ways of measuring "g" (, 1958, as cited by Wechsler & Naglieri, 2006). Understanding this theoretical framework is important because Wechsler and Naglieri (2006) argued that given that both verbal and performance are equally valid indicators of general cognitive abilities, the WNV is by default as legitimate a valid means of measuring the "g" factor as any other test that chooses different indicators (i.e., verbal abilities). The WNV aligns with specific components or domains of Cattell-Horn-Carroll (CHC; Carroll, 1993) theory, but does not try to cover all CHC components.