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the claim

Quick response times correlate with higher general intelligence

the verdict
SUPPORTED
the evidence backs this
Recorded sources
4 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Quick response times correlate with higher general intelligence?

Yes. Multiple studies demonstrate a consistent positive correlation between faster reaction times/processing speed and higher general intelligence.

Verdict: SUPPORTED · 4 sources for, 0 against · Last checked

The analysis

The retrieved literature consistently supports the long-standing observation in differential psychology that mental speed (operationalized as reaction time) correlates positively with measures of general intelligence (g) and cognitive ability.

Evidence for · 4
A Differential–Developmental Model (DDM): Mental Speed, Attention Lapses, and General Intelligence (g)
2017
The differential-developmental model highlights mental speed and reaction time as key components predicting general intelligence (g).
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Coyle, T. (2017). A Differential–Developmental Model (DDM): Mental Speed, Attention Lapses, and General Intelligence (g). doi.org. https://doi.org/10.3390/jintelligence5020025

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More for · 3
Visual Search, Reaction Time, and Cognitive Ability
1998
Results demonstrate significant correlations between faster reaction times and higher scores on cognitive ability scales.
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Schweizer, K. (1998). Visual Search, Reaction Time, and Cognitive Ability. doi.org. https://doi.org/10.2466/pms.1998.86.1.79

Associations between the resting EEG aperiodic slope and broad domains of cognitive ability.
2024
Latent reaction time variables are significantly associated with a general cognitive ability factor, with faster responses linked to broader performance.
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Euler, M. J., Vehar, J. V., Guevara, J. E., Geiger, A. R., Deboeck, P. R., & Lohse, K. R. (2024). Associations between the resting EEG aperiodic slope and broad domains of cognitive ability.. doi.org. https://doi.org/10.1111/psyp.14543

Information processing speed mediates the relationship between white matter and general intelligence in schizophrenia.
2016
Information processing speed is shown to support and mediate the relationship between neural structure and general intelligence.
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Alloza, C., Cox, S. R., Duff, B., Semple, S. I., Bastin, M. E., Whalley, H. C., & Lawrie, S. M. (2016). Information processing speed mediates the relationship between white matter and general intelligence in schizophrenia.. doi.org. https://doi.org/10.1016/j.pscychresns.2016.05.008

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What does the evidence say?

The retrieved literature consistently supports the long-standing observation in differential psychology that mental speed (operationalized as reaction time) correlates positively with measures of general intelligence (g) and cognitive ability.

Receipt History
first checked04 Aug 2026
judged → SUPPORTED · 8204 Aug 2026
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