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Download full textSanford, Emily M.; Halberda, Justin – Journal of Numerical Cognition, 2023
Are there some differences so small that we cannot detect them? Are some quantities so similar (e.g., the number of spots on two speckled hens) that they simply look the same to us? Although modern psychophysical theories such as Signal Detection Theory would predict that, with enough trials, even minute differences would be perceptible at an…
Descriptors: Number Concepts, Numeracy, Perception, Discrimination Learning
Peer reviewedGranberg, Donald – Journal of General Psychology, 1972
Descriptors: Adaptation Level Theory, Adjustment (to Environment), College Students, Discrimination Learning
