Psychology Qns 2

Psychology Qns 2 - Psychophysics is the study of _. a) the...

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Psychophysics is the study of ______. a) the relationship between the physical properties of stimuli and the psychological perception of those stimuli b) the various methods that can be used to measure psychological and physical experiences c) how the physical properties of external stimuli are interpreted psychologically d) both (a) and (c) The absolute threshold for visual input might also be described as: a) the maximum amount of light energy a person can detect 50% of the time. b) the minimum amount of light energy a person can detect 50% of the time. c) the absolute range of light energy a person can detect 100% of the time. d) the theoretical range of light energy a person can detect 100% of the time. There is some evidence to support ______ but no evidence to support ______. a) subliminal persuasion; ESP b) subliminal perception; ESP c) subliminal perception; subliminal persuasion d) both (b) and (c) According to signal detection theory, our ability to detect a faint sensory signal is a decision-making process that depends upon: a) only physiological sensitivity to the signal. b) only a person's decision criterion that is based on non-sensory factors such as personality traits, expectations, alertness, and motivation. c) absolute thresholds. d) both physiological sensitivity to the signal and a person's decision criterion that is based on non- sensory factors such as personality traits, expectation, alertness, and motivation. According to signal detection theory, "yea" sayer is to ______ as "nay" sayer is to ______. a) many hits and many correct rejections; many false alarms and many misses b) many hits and many false alarms; many correct rejections and many misses c) many hits and false alarms; few misses and many correct rejections d) many hits and many correct rejections; few hits and few correct rejections The difference threshold is the minimum difference between two stimuli detected ______ percent of the time.
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b) 75 c) 50 d) 25 According to Weber's Law, if the difference threshold for a 10-pound weight were .20 pounds, the difference threshold for a 50 pound weight would be______. a) 50 pounds b) 1 pound c) 1.5 pounds d) 2 pounds ______ states that the perceived stimulus magnitude is equal to the actual physical intensity raised to some constant power. a) Steven's power law b) The power threshold c) The absolute threshold d) The difference threshold According to ______, our sensitivity to unchanging or repetitious stimuli disappears over time. a) subliminal perception b) Steven's power law c) Weber's law d) sensory adaptation Amplitude is the ______. a) height of a wave at its crest b) amount of energy in a wave c) the intensity of a wave d) All of these answers are correct…. CORRECT ANSWER In relation to sound, which of the following is determined by the frequency of a sound wave? a) amplitude of a sound wave
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Psychology Qns 2 - Psychophysics is the study of _. a) the...

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