Not WAIS. Not WISC. Not Mensa.

Online IQ tests with published items, keys, and norms

Start with an age band: under 13 sees mostly figures and matrices, without adult ICAR word problems. From 13 you get the full ICAR-16 battery. The report unlocks after a $0.99 payment.

Under 13 13 and older Where the items come from

Two age bands
Under 13: visual matrices and cubes. 13+: full ICAR, including verbal items.
Keys stay on the server
Correct answers never ship to the browser. The report unlocks after a $0.99 payment.
Papers and GitHub
ICAR is public domain. Matrices come from IQ1.zip. ICAR-16 figures are from the Italian adaptation.

Under 13

Picture items only — no long word problems. This is not a WISC. The IQ figure is an open-norm estimate, not a clinical score.

Matrices, warm-up

short

First 8 IQ1 figure items — a short visual set

6–12 min · 8 items

Matrices

Same IQ1 keys. Norms: sum correct on Q1–Q8 in data.csv (n = 400, M = 5.02, SD = 1.81).

Matrices, short form

short

12 figure items with no reading — suitable under 13

10–18 min · 12 items

Matrices

Norms: sum correct on Q1–Q12 (n = 400, M = 7.34, SD = 2.60).

Matrices, second half

standard

IQ1 items 13–25 — typically harder than the first half

12–22 min · 13 items

Matrices

Norms: sum correct on Q13–Q25 (n = 400, M = 4.96, SD = 2.80).

OpenPsychometrics matrices

long

All 25 matrix items with published keys, n = 400

20–30 min · 25 items

Matrices

The items_matrix_reasoning set in the edmdata package. Norms M = 12.31, SD = 4.81.

ICAR: matrices only

short

The 4 Raven-style matrices from ICAR-16

5–10 min · 4 items

Matrices

Keys 5,2,2,4 (A=1). p = .52, .60, .62, .36.

ICAR: cube rotation

standard

4 mental rotation cubes — the hardest ICAR-16 items

6–12 min · 4 items

3D rotation

Keys 3,2,6,7. p = .17, .21, .29, .17 — low pass rates even in adults.

ICAR: spatial

standard

8 items: matrices plus cube rotation

10–15 min · 8 items

Matrices3D rotation

matrix+rotate keys from psych::iqitems. Almost no reading.

13 and older

Full ICAR-16, subscale splits, and letter series. Condon & Revelle norms come mostly from adult SAPA web samples.

Matrices, warm-up

short

First 8 IQ1 figure items — a short visual set

6–12 min · 8 items

Matrices

Same IQ1 keys. Norms: sum correct on Q1–Q8 in data.csv (n = 400, M = 5.02, SD = 1.81).

Matrices, short form

short

12 figure items with no reading — suitable under 13

10–18 min · 12 items

Matrices

Norms: sum correct on Q1–Q12 (n = 400, M = 7.34, SD = 2.60).

Matrices, second half

standard

IQ1 items 13–25 — typically harder than the first half

12–22 min · 13 items

Matrices

Norms: sum correct on Q13–Q25 (n = 400, M = 4.96, SD = 2.80).

OpenPsychometrics matrices

long

All 25 matrix items with published keys, n = 400

20–30 min · 25 items

Matrices

The items_matrix_reasoning set in the edmdata package. Norms M = 12.31, SD = 4.81.

ICAR: matrices only

short

The 4 Raven-style matrices from ICAR-16

5–10 min · 4 items

Matrices

Keys 5,2,2,4 (A=1). p = .52, .60, .62, .36.

ICAR: cube rotation

standard

4 mental rotation cubes — the hardest ICAR-16 items

6–12 min · 4 items

3D rotation

Keys 3,2,6,7. p = .17, .21, .29, .17 — low pass rates even in adults.

ICAR: spatial

standard

8 items: matrices plus cube rotation

10–15 min · 8 items

Matrices3D rotation

matrix+rotate keys from psych::iqitems. Almost no reading.

ICAR: 8-item snapshot

short

Two items from each ICAR-16 scale — a quick look at g

8–14 min · 8 items

Verbal reasoningLetter seriesMatrices3D rotation

Same official keys. Norm is the sum of selected item p-values (M ≈ 4.28).

ICAR: verbal

short

4 reasoning items (numbers, comparison, age, days of week)

5–8 min · 4 items

Verbal reasoning

Keys 4,4,4,6. p = .67, .69, .73, .61.

ICAR: letter series

short

4 letter sequences from ICAR-16

5–8 min · 4 items

Letter series

Keys 6,3,4,4. p = .62, .59, .62, .42.

ICAR: verbal + series

short

8 ICAR-16 items with no figures

8–12 min · 8 items

Verbal reasoningLetter series

reason.4–19 and letter.7–58. Word items, so 13+.

ICAR-16

standard

The full 16-item International Cognitive Ability Resource sample test

12–20 min · 16 items

Verbal reasoningLetter seriesMatrices3D rotation

Public domain, SAPA n ≈ 97,000. Keys from psych::iqitems. Adult norms — 13+.

Vocabulary, short form

short

15 English synonym pairs from the Vocabulary IQ Test, easy through hard

6–10 min · 15 items

Vocabulary

Same VIQT codebook keys. Norm is the number of correct pairs on these 15 items, n = 12,173 (M = 9.16, SD = 4.20).

OpenPsychometrics vocabulary

long

All 45 items: mark the two words that share a meaning. The words are English.

12–20 min · 45 items

Vocabulary

Item text and keys are the VIQT codebook. Norm is score_right, n = 12,173 (M = 32.93, SD = 8.80).