- A limited system for holding and manipulating information over seconds.
- Digit span, Corsi blocks, complex span (remember letters while doing math), and n-back (detect a repeat N steps back).
- No.
- You can expand performance on the trained task.
- Miller (1956) wrote about chunks in immediate memory, popularized as “seven plus or minus two.” Digit span is related but not identical.
- Digit-span, corsi-blocks, n-back, dual-n-back-lite, sequence-memory.
What is working memory?
A limited system for holding and manipulating information over seconds. Baddeley’s model splits phonological and visuospatial storage plus a central executive. Capacity is small; chunking helps.
How is it measured?
Digit span, Corsi blocks, complex span (remember letters while doing math), and n-back (detect a repeat N steps back). Each taps overlapping but not identical skills. Our digit-span, corsi-blocks, n-back, and dual-n-back-lite are practice versions without clinical norms.
Is working memory the same as IQ?
No. WM correlates with Gf and g, sometimes substantially, but it is one predictor among many. A high Corsi span is not a Full Scale IQ.
Can I expand working memory?
You can expand performance on the trained task. Whether the underlying capacity grows, or you just get better strategies, is debated. Far transfer remains the weak link.
What about Miller’s 7±2?
Miller (1956) wrote about chunks in immediate memory, popularized as “seven plus or minus two.” Digit span is related but not identical. See our digit-span-what-is-normal page for caveats.
Which games here load WM?
Digit-span, corsi-blocks, n-back, dual-n-back-lite, sequence-memory. Report spans and hits — never a fake IQ from those hits.
❓ People also ask
What Is a Good IQ Score?
An IQ of 100 is exactly average; 110-119 is above average, 120 and up puts you in the top 10% (a genuinely 'good' score), and 130+ is considered gifted. IQ is built on a normal distribution with a mean of 100 and a standard deviation of 15, so most people cluster near the middle.
What Is a Good IQ Score? →IQ Percentile Chart: What Percentile Is My IQ?
Your IQ percentile tells you the share of people you scored higher than: an IQ of 100 is the 50th percentile, 115 is about the 84th, 120 is roughly the top 10%, and 130 is roughly the top 2%. The table below maps every major IQ band to its classification, percentile, and share of the population.
IQ Percentile Chart: What Percentile Is My IQ? →Are Online IQ Tests Accurate?
A well-designed online IQ test gives a reliable estimate of your reasoning ability, but it is not a clinical diagnosis — only a proctored test like the WAIS or Stanford-Binet provides that. This test is built on Raven's Progressive Matrices and CHC theory, scored on the standard scale (mean 100, SD 15), with an internal reliability (Cronbach's alpha) of about 0.85-0.92.
Are Online IQ Tests Accurate? →Can You Increase Your IQ?
You can meaningfully sharpen reasoning skills, working memory, and test performance through training and education, but raising your underlying general intelligence (g) substantially and permanently is not well supported — core g is largely heritable. The honest answer is that some gains are real and some popular claims are overstated.
Can You Increase Your IQ? →Genius IQ Level: What Number Counts as Genius?
A 'genius' IQ traditionally starts at 140, while 130 and above is labeled 'very superior' on modern tests. Scores that high are extremely rare, and the famous IQ numbers you see for historical figures are almost always estimates, not measured results.
Genius IQ Level: What Number Counts as Genius? →