MCAT Psych Soc Practice Questions - MCAT Psychological, Social, And Biological Foundations Of Behavior Exam

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A researcher presents a tone at 1000 Hz and 60 dB to participants and asks them to detect when a second tone differs. According to Weber's Law, if the just noticeable difference (JND) for loudness at this intensity is 2 dB, what would the JND be if the baseline intensity were increased to 120 dB?

2 dB 4 dB 6 dB The JND cannot be determined from Weber's Law alone

Correct Answer:

4 dB

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