Psych & Soc Quiz
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FOUNDATIONAL CONCEPT 6: PERCEPTION, COGNITION, EMOTION
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An ergonomics team tests difference thresholds for screen brightness to set default settings on hospital monitors. Clinicians view a reference display at 120 cd/m2^2 and then a comparison display. They indicate whether the comparison is brighter. The JND is defined as the smallest increase producing "brighter" responses on 75% of trials. Data: - 123 cd/m2^2: 14/40 "brighter" - 126 cd/m2^2: 21/40 "brighter" - 129 cd/m2^2: 31/40 "brighter" - 132 cd/m2^2: 33/40 "brighter" Which default adjustment is most consistent with selecting a change that is typically noticeable?
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