A free calculator that only subtracts official Wechsler scores.
You already have a Wechsler report with official FSIQ, GAI, CPI, or index scores.
This page helps you read the GAI minus FSIQ gap. It does not give you a new IQ test.
Paste the numbers printed on the report.
Do not invent subtest totals. Do not treat an estimate as a replacement for a licensed examiner.
GAI leans on verbal and perceptual indexes.
FSIQ also includes working memory and processing speed.
A gap can be large even when both scores are official. The calculator shows the subtraction; it does not interpret eligibility.
A calculator cannot replace a psychologist.
Do not send this output to a school, employer, or visa office as proof.
If you need a formal interpretation, talk to the examiner who signed the report.
GAIvsIQ Laboratory