The international cognitive ability resource: Development and initial validation of a public-domain measure

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Explanations in the wild. (2021, positive): “Verbal reasoning: 4 items testing deductive reasoning (Condon & Revelle, 2014).”
A model for personality at three levels (2015, methodology): “…different occupations and college majors, we have shown (Revelle and Condon, 2012) striking differences in the level of cognitive ability (as assessed by the ICAR measure of ability (Condon and Revelle, 2014)) and the structure of the Big Five temperament measures as a function of college major.”
Is creativity without intelligence possible? A Necessary Condition Analysis (2016, methodology): “To measure intelligence, we used thirty items developed within the International Cognitive Ability Resource Project (ICAR, http://www.icar-project.com, see also Condon & Revelle, 2014).”
Cognitive ability and authoritarianism: Understanding support for Trump and Clinton (2017, background): “Addressing this hurdle, Condon and Revelle (2014) created the International Cognitive Ability Resource measure (ICAR).”
Exploratory graph analysis: A new approach for estimating the number of dimensions in psychological research (2016, methodology): “The choice of using this kind of items can be justified by the dichotomous nature of a significant number of intelligence test items, especially those requiring the respondents to perform some task with only one correct answer, such as the Raven’s progressive matrices [55], the Wiener Matrizen-Test ”