inspection time

psychology

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July 17, 2026

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The term "inspection" refers to a close examination of someone or something to assess its condition. This can involve various synonyms such as audits, examinations, surveys, scrutinies, and checks.1

In psychology, "inspection time" is a concept related to measuring intelligence. It refers to the minimum duration a person needs to be presented with a simple stimulus, like two lines of unequal length, to accurately identify which is longer. Research suggests that individuals with higher intelligence may be able to make these discriminations with shorter inspection times. This cognitive measure is thought to reflect differences in how quickly people can take in and process basic information.2

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human intelligence
Cognitive theories
He argued that inspection time is a particularly useful means of measuring intelligence. It is thought that individual differences in intelligence may derive in part from differences in the rate of intake and processing of simple stimulus information. In the inspection-time task, a person looks at two vertical…
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He argued that inspection time is a particularly useful means of measuring intelligence. It is thought that individual differences in intelligence may derive in part from differences in the rate of intake and processing of simple stimulus information. In the inspection-time task, a person looks at two vertical…
Read More