Main evidence and numbers
| Question | Answer | Source |
|---|---|---|
| Wetin be di average after dem adjust am? | 100 inside di age group wey concern. | Scientific overview |
| Raw performance dey remain di same? | No. Speed, memory and vocabulary get different patterns as age dey change. | Life-span study |
Norming na to describe di reference scale. E no guarantee say any convenience sample wey dem collect now go average exactly for di middle of di scale.
Wetin dey affect am?
Di test, language, reference population and date of di norms matter. Research on raw performance still find say tasks wey test processing speed dey reach peak earlier pass vocabulary tasks; dis one different from comparing IQ scores wey dem adjust by age. Scientific overview, life-span study
Try the free test wey connect to this one
IQ-style test
Test yourself: IQ-style tasks. Use di result make you explore dis tasks; e no prove IQ wey professional measure, or your position among people wey be your age.
Common questions
Older adults dey automatically get lower IQ scores?
Score wey dem adjust by age dey compare performance with reference group for dat age. Raw scores and scores wey dem adjust by age answer different questions.
Di average dey describe every country or language?
E describe di group wey dem use to set di scale norms. Test need evidence for di population and language wey people dey use am for.
Online score fit tell me my mental age?
We no get any conversion wey dem validate from Helibrain performance to mental age, so we no dey offer am.
Sources
Cite dis page: Wetin be di average IQ by age?. Helibrain. 2026. https://helibrain.com/pcm/answers/average-iq-by-age. CC BY 4.0.
← Check more ansa dem