International Cognitive Ability Resource.

ICAR

What it measures

general cognitive ability (g); matrix reasoning; verbal reasoning; letter-number series; three-dimensional rotation

Length and format

Original public set = 60 items (9 Letter/Number Series, 11 Matrix Reasoning, 16 Verbal Reasoning, 24 3-D Rotation); ICAR-16 sample test; full bank now ~1,000 items. multiple-choice cognitive items across 4 item types; online/self-administrable (performance/ability test)

Language versions

Adapted into multiple languages by the research community (open license encourages translation/extension); items added continuously

Normative data

Languages	Countries	Breakdown	Status	Grade	N
en	general	none	HELD_PROVISIONAL	-	-
en	intl	gender+age	COLLECTED	C	57901
en	US	test-retest (rTT/ICC), ~12-day interval, MTB smartphone adaptation	COLLECTED	B	56 (retest subsample of N=100)
en	general	none	HELD_PLACEHOLDER	-	-
en	intl	gender+age	COLLECTED	C	70633
en	general	none	HELD_PROVISIONAL	-	-
en	intl	gender+age	COLLECTED	C	70633
en	general	none	HELD_PROVISIONAL	-	-
en	intl	gender+age	COLLECTED	C	40000
en	general	none	HELD_PROVISIONAL	-	-
en	intl	gender+age	COLLECTED	C	30114
en	US	test-retest (rTT/ICC), ~12-day interval, MTB smartphone adaptation	COLLECTED	B	56 (retest subsample of N=100)
en	general	none	HELD_PROVISIONAL	-	-
en	intl	gender+age	COLLECTED	C	40000

Licence

public-domain / open

Licence classification is a research judgement by the catalogue’s authors, not legal advice, and it can be out of date. Confirm terms with the copyright holder or publisher before using an instrument, especially for commercial use.

Reference

Condon, D. M., & Revelle, W. (2014). The International Cognitive Ability Resource: Development and initial validation of a public-domain measure. Intelligence, 43, 52-64.