Luisa agrees to look after her friend's' new baby while they run an errand. Luisa tries to read with the stereo on but keeps listening for signs that the baby might be crying in the bedroom. Several times, Luisa thinks she can hear whimpering--but when she checks the baby, she usually finds her sound asleep. Which of the following best explains why Luisa's sensations are not always accurate?

Luisa agrees to look after her friend's' new baby while they run an errand. Luisa tries to read with the stereo on but keeps listening for signs that the baby might be crying in the bedroom. Several times, Luisa thinks she can hear whimpering--but when she checks the baby, she usually finds her sound asleep. Which of the following best explains why Luisa's sensations are not always accurate?

Luisa agrees to look after her friend's' new baby while they run an errand. Luisa tries to read with the stereo on but keeps listening for signs that the baby might be crying in the bedroom. Several times, Luisa thinks she can hear whimpering--but when she checks the baby, she usually finds her sound asleep. Which of the following best explains why Luisa's sensations are not always accurate?




A) classical absolute threshold theory
B) signal detection theory
C) the law of Pragnanz
D) Steve's power law
E) Weber's law


Answer: B