A number of studies have found that openness to experience has two major subcomponents, one related to intellectual dispositions, the other related to the experiential aspects of openness, such as aesthetic appreciation and openness to sensory experiences. These subcomponents have been referred to as intellect and experiencing openness respectively, and have a strong positive correlation (r = .55) with each other.[12]
According to research by Sam Gosling, it is possible to assess openness by examining people's homes and work spaces. Individuals who are highly open to experience tend to have distinctive and unconventional decorations. They are also likely to have books on a wide variety of topics, a diverse music collection, and works of art on display.[13]
Intelligence and knowledge
Openness to experience correlates with intelligence, correlation coefficients ranging from about r = .30 to r = .45.[18] Openness to experience is moderately associated with crystallized intelligence, but only weakly with fluid intelligence.[18][19] A study examining the facets of openness found that the Ideas and Actions facets had modest positive correlations with fluid intelligence (r=.20 and r=.07 respectively).[18] These mental abilities may come more easily when people are dispositionally curious and open to learning. Several studies have found positive associations between openness to experience and general knowledge.[20][21][22][23] People high in openness may be more motivated to engage in intellectual pursuits that increase their knowledge.[23] Openness to experience, especially the Ideas facet, is related to need for cognition,[24] a motivational tendency to think about ideas, scrutinize information, and enjoy solving puzzles, and to typical intellectual engagement[25] (a similar construct to need for cognition).[26]
https://en.wikipedia.org/wiki/Openness_to_experience
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