Key evidence an nummers
| Comparison an outcome reviewed | Standardised mean effect, g | 95% confidence interval |
|---|---|---|
| Workin-memory trainin: non-verbal ability versus treated controls | 0.05 | −0.02 tae 0.13 |
| Workin-memory trainin: non-verbal ability versus untreated controls | 0.20 | 0.11 tae 0.28 |
| N-back trainin: fluid reasonin, mixed control types | 0.16 | 0.08 tae 0.24 |
Sources: review o workin memory, immediate-transfer table, N-back review, domain analysis. Treated controls did anither trainin activity; untreated controls didnae get comparable trainin. Thir are standardised group differences, no IQ points or a range o expected personal gains. The N-back review's estimate for reasonin got smawer an uncertain efter adjustment for control type.
Whit affects it?
The wider review includes different ages an workin-memory tasks; the N-back review focuses on healthy adults. Study selection, analysis an control activities help explain the different estimates. Review o workin memory, N-back review
Gie the related free test a try
N-back test
Test yersel: N-back (Inglis). Use it tae explore how tae update information in yer memory, wi nae promised IQ increase.
Common questions
Is gettin better at the gemme a real improvement?
It is improvement at that task. Improvement in anither ability needs its ain evidence.
Do thir figures cover ilka kind o brain trainin?
They are aboot the stated workin-memory trainin an reasonin outcomes. They shouldnae be applied tae ilka learnin activity.
Does an interval that includes nae effect prove there's nae benefit at aa?
Naw. It shows uncertainty aroond the estimate. It disnae support a guaranteed personal gain.
Sources
Cite this page: Can brain trainin improve yer IQ?. Helibrain. 2026. https://helibrain.com/sco/answers/can-brain-training-improve-iq. CC BY 4.0.
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