Sometimes, measuring a client’s or student’s overall intellectual ability isn’t as simple as administering the RIAS-2 , the TOGRA, or the RAIT. Sometimes, very young children; those who speak English as a second language; and those with communication or speech disorders, attention disorders, autism spectrum disorders, traumatic brain injury, and other conditions have difficulty on traditional tests of IQ—and they may be underserved simply because they can’t be tested accurately.
The Vocabulary Assessment Scales (VAS) offer an alternate way to assess overall intellectual ability by measuring expressive and receptive vocabulary ability. Research has shown that vocabulary ability correlates strongly with cognitive ability, so professionals can confidently use data from the VAS to estimate general intelligence in individuals ages 2 years, 6 months to 95 years. The VAS correlates strongly with the Reynolds Intellectual Assessment Scales (RIAS), a trusted measure of general intelligence.
Help uncover your client’s intellectual abilities and get them the help they need to succeed.
With very little motor skill required, and no reading or writing necessary, the test is suited for those who have difficulties taking traditional IQ tests.
The VAS uses modern, engaging photographs (not outdated line drawings, like other picture vocabulary tests) to gauge expressive and receptive language ability. It offers digital stimuli (available on an iPad) to engage younger clients, and scoring is available on PARiConnect, our digital assessment platform.
The VAS-Expressive asks test-takers to look at a picture and answer, “What is this?” Items were generated so the number of possible one-word answers was limited. The VAS-Receptive asks test-takers to respond to questions like, “point to the frog” when presented with an array of four possible answers. There are few overlapping items between the receptive and expressive versions, which helps reduce practice effects.
In addition, each test includes two equivalent forms (A and B) with no overlapping items and reliable change scores, making it a useful tool for measuring response to intervention (RTI) in school-based reading programs, medical settings, or after injury or illness.
The VAS is the only picture vocabulary test that provides a composite score and a reliable change score. It also features less complicated basal and ceiling rules, so it’s easier to administer and score than similar measures.
Each test only takes about 15 minutes to administer, and normative data are provided for 28 different age groups and for Grades K-12 (spring and fall).
For more information about the VAS, visit www.parinc.com or call 1.800.331.8378.