Wechsler Intelligence Scale for Children (WISC)

A clinician's overview of the Wechsler Intelligence Scale for Children (WISC), the most widely used individually administered IQ test for children. What it measures, how it is structured, and how it is used in India.

What it is

The WISC is an individually administered test of general cognitive ability for children and adolescents, developed by David Wechsler and now published by Pearson in its fifth edition (WISC-V). It gives a Full Scale IQ (FSIQ) alongside several index scores that describe different cognitive domains.

Rather than a single number, its value lies in the profile: it can show that a child reasons well verbally but processes information slowly, or has strong visual-spatial skills but weak working memory. That profile informs learning support, diagnosis of specific learning disorders, and identification of intellectual giftedness or disability.

What it covers

Who it is for

It is used with children aged roughly 6 to 16 for questions about learning difficulties, attention and developmental concerns, giftedness, and intellectual disability, and as part of a fuller psychoeducational assessment.

It is administered one-to-one by a qualified psychologist trained in its use. It is not a group or online test, and a valid result depends on standardised administration and rapport with the child.

How it is administered

The psychologist works through a series of subtests, some verbal, some involving blocks, pictures and puzzles, and some timed. Raw scores are converted to scaled scores using age norms, which combine into the index scores and the FSIQ.

Because the materials are standardised and secure, only qualified professionals may purchase and administer them. Practice or exposure to items invalidates the result, which is why the actual questions are never published.

Use in India

In India, the WISC is used in clinics, schools and hospitals, often alongside or in place of Indian-adapted batteries. Malin's Intelligence Scale for Indian Children (MISIC) is an Indian adaptation of an earlier WISC, still widely used where Indian norms are preferred. Clinicians weigh language, schooling and cultural familiarity when choosing between the WISC and an Indian-normed test, and when interpreting scores for Indian children.

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Citation and sources

Wechsler, D. (2014). Wechsler Intelligence Scale for Children (5th ed.). Pearson.

• Wechsler Intelligence Scale for Children (overview) — Wikipedia

This page is general educational information for professionals, not clinical or legal advice, and not a substitute for training in the instrument. ElloMind does not provide, sell or reproduce copyrighted test materials.