In a signal detection task josh often indicates he

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Chapter 3- Multiple Choice.pdf

In a signal detection task Josh often indicates he has seen the signal even from LIB MISC at MCPHS University

21 .   In a signal detection experiment , a tendency to say " yes " leads to _ ____ , whereas a tendency to say " no " leads to _ _ ___.
A ) many false alarms ; few misses
B ) few false alarms ; many misses
C ) few misses ; few false alarms
D ) many misses ; many false alarms
22 .   David is holding a surprise birthday party for Ellen and has asked Fredo to stand outside his apartment door to signal when Ellen is approaching . According to signal detection theory , if Fredo is more concerned about noticing when Ellen is approaching than about being incorrect , he is likely to adopt a _____ decision criterion and thus have more _ ____ than _ ____.
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23 .   In a signal detection task , Josh often indicates he has seen the signal , even when he is not sure . Josh is using a criterion that will result in _____ false alarms and _____ misses .
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24 .   According to signal detection theory , if your life depended on an X- ray technician 's ability to detect a cancerous tumor , you would want her to have a _____ detection criterion , which would result in a high rate of _____.
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25 .   According to signal detection theory , a " yea " sayer has many hits and many _____ , where as a " nay " sayer has _____.
A ) correct rejections ; many false alarms and many misses
B ) false alarms ; many correct rejections and many misses
C ) false alarms ; few misses and many correct rejections
D ) correct rejections ; few hits and few correct rejections
26 .   Based on signal detection theory , a " yea " sayer is to _____ as a " nay " sayer is to _____.
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27 .   Based on signal detection theory , a " yea " sayer is to _____ as a " nay " sayer is to _____.
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28 .   When studying the difference threshold , the stimulus that remains the same across trials is called the _____ stimulus .
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29 .   The difference threshold is the minimum difference between two stimuli detected _____ percent of the time .
A ) 100
B ) 75
C ) 50
D ) 25
30 .   Another name for the difference threshold is the _____ noticeable difference .
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31 .   Don is in an experiment in which the researcher has him hold a constant weight in one hand . The researcher varies the amount of weight in Don 's other hand , and each time the weight is changed , Don has to determine whether it differs from the constant weight . Don is participating in an experiment measuring :
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32 .   _ ____ states that for each type of sensory judgment that we make , the measured just noticeable difference ( jnd ) is a constant proportion of the standard stimulus value used to measure it .
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33 .   If the Weber fraction for lifted weights is 1/50 and the standard stimulus used to determine the just noticeable difference ( jnd ) is 500 pounds , the jnd would be _____ pounds .
A ) 50
B ) 5
C ) 10
D ) 25
34 .   Which constant fraction of a standard stimulus would indicate the ability to detect smaller differences between the same stimuli ?
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35 .   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 _ _ ___ pound ( s ) .
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36 .   Which statement describes a similarity between Stevens 's power law and Weber 's law ?
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23.In a signal detection task, Josh often indicates he has seen the signal, even when he is not sure. Josh is using a criterion that will result in _____ false alarms and _____ misses. A) many; many B) many; few C) few; many D) few; few
24.According to signal detection theory, if your life depended on an X-ray technician's ability to detect a cancerous tumor, you would want her to have a _____ detection criterion, which would result in a high rate of _____.
25.According to signal detection theory, a "yea" sayer has many hits and many _____, whereas a "nay" sayer has _____.
Page 6 26.Based on signal detection theory, a "yea" sayer is to _____ as a "nay" sayer is to _____.
27.Based on signal detection theory, a "yea" sayer is to _____ as a "nay" sayer is to _____. A) many false alarms; many misses B) many misses; many false alarms C) many false alarms; few misses D) few false alarms; many misses
28.When studying the difference threshold, the stimulus that remains the same across trials is called the _____ stimulus.
29.The difference threshold is the minimum difference between two stimuli detected _____ percent of the time.
30.Another name for the difference threshold is the _____ noticeable difference.
31.Don is in an experiment in which the researcher has him hold a constant weight in one hand. The researcher varies the amount of weight in Don's other hand, and each time the weight is changed, Don has to determine whether it differs from the constant weight. Don is participating in an experiment measuring: A) absolute thresholds. B) false alarms. C) misses. D) difference thresholds.
Page 7 32._____ states that for each type of sensory judgment that we make, the measured just noticeable difference (jnd) is a constant proportion of the standard stimulus value used to measure it.

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