- A subtest is one timed or untimed task (e.g., vocabulary, block-like designs, digit span, coding).
- Digit Span (forward, backward, sequencing on recent editions) and arithmetic-style items in some versions.
- Block design, matrix reasoning, visual puzzles (edition-dependent).
- Copyright and test security.
- Familiarity with the format can create a practice effect.
- Digit-span, corsi-blocks, verbal-analogies-lite, pattern-matrices-lite, trail-making-lite — labeled as games.
What is a subtest vs an index?
A subtest is one timed or untimed task (e.g., vocabulary, block-like designs, digit span, coding). An index combines several subtests. Full Scale IQ blends indexes. Dropping one subtest is not “hacking IQ.”
What does working memory look like on WAIS?
Digit Span (forward, backward, sequencing on recent editions) and arithmetic-style items in some versions. Our digit-span game is a cousin in spirit only — different stimuli, no norms, no substitution for WAIS WMI.
What about visuospatial and matrices?
Block design, matrix reasoning, visual puzzles (edition-dependent). Our pattern-matrices-lite and corsi-blocks are original practice, not WAIS forms.
Why can’t you show real items?
Copyright and test security. Publishing real items ruins the test for clinics and is illegal. Anyone offering “real WAIS questions” is selling contamination.
Can I study subtests to raise IQ?
Familiarity with the format can create a practice effect. That is not the same as a new g. See practice-effect-on-iq-tests.
Honest practice on this site
Digit-span, corsi-blocks, verbal-analogies-lite, pattern-matrices-lite, trail-making-lite — labeled as games.
❓ 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? →