WASI

The Wechsler Abbreviated Scale of Intelligence (WASI) is a short-form performance scale designed to measure intellectual functioning through verbal and nonverbal subtests. It provides a reliable measure of general intelligence and is often used as a screening tool before conducting more comprehensive evaluations.

The WASI-II introduced updated norms, improved test items, and a more representative sample to enhance clinical utility and accuracy. It also refined the scoring process and administration guidelines to align with modern intelligence testing standards.

The WASI is a brief screening tool designed to estimate general intellectual ability, while the Wechsler Adult Intelligence Scale (WAIS) is a comprehensive measure that provides a detailed assessment of cognitive functioning across multiple domains. The WAIS includes more subtests and offers a deeper analysis of verbal reasoning, perceptual reasoning, working memory, and processing speed.