The Wechsler Adult Intelligence Scale (WAIS), developed in 1955 by David Wechsler, introduced a broader and more dynamic approach to assessing cognitive abilities. Over the years, it has been refined through several editions, becoming one of the most widely used tools in psychological and neurocognitive evaluations. This post reviews its …
An alternative Cattell-Horn-Carroll (CHC) factor structure of the WAIS-IV
The Wechsler Adult Intelligence Scale—Fourth Edition (WAIS-IV) is widely recognized as one of the most utilized intelligence tests for adults. While previous studies have examined the test’s structure using the Cattell–Horn–Carroll (CHC) model, individuals aged 70 and older have often been excluded due to the absence of supplemental subtests in …
Stanford-Binet & WAIS IQ Differences in Adults with Intellectual Disability
Research comparing IQ scores from the Stanford-Binet and the Wechsler Adult Intelligence Scale (WAIS) reveals significant differences. These findings hold implications for assessing intellectual disabilities, diagnosing cognitive impairments, and understanding the practical outcomes of these assessments. This analysis reflects on the study conducted by Silverman et al. (2010), which reported …
What does the WAIS-IV measure?
This article examines the structure and cross-age consistency of the Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV). The research evaluates how the test aligns with the Cattell-Horn-Carroll (CHC) theory of intelligence and whether it measures the same constructs across different age groups. The findings offer valuable insights into the application and …