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Questions and Answers
Which distribution is used to represent the noise in signal detection theory?
Which distribution is used to represent the noise in signal detection theory?
- Normal distribution (correct)
- Poisson distribution
- Uniform distribution
- Exponential distribution
What is the measure used to express deviation from the mean in the standard normal distribution?
What is the measure used to express deviation from the mean in the standard normal distribution?
- Standard deviation
- Z-score (correct)
- Mean deviation
- Variance
What does the criterion (c) represent in signal detection theory?
What does the criterion (c) represent in signal detection theory?
- Perceived intensity
- Probability of occurrence
- Threshold or bias (correct)
- Baseline intensity
What happens to the average intensity when a signal is added to the noise?
What happens to the average intensity when a signal is added to the noise?
According to the text, what does the symbol d' represent?
According to the text, what does the symbol d' represent?
In Signal Detection Theory, what does a d' value of 0 indicate?
In Signal Detection Theory, what does a d' value of 0 indicate?
What are the four possible outcomes in the response matrix?
What are the four possible outcomes in the response matrix?
How are the percentages of hits and misses computed in the response matrix?
How are the percentages of hits and misses computed in the response matrix?
According to the text, what factor did the manager fail to take into account when constructing the pay-off matrix?
According to the text, what factor did the manager fail to take into account when constructing the pay-off matrix?
What does the term 'expected value' refer to in the context of the pay-off matrix?
What does the term 'expected value' refer to in the context of the pay-off matrix?
What is the likelihood of a bag being dangerous in the hypothetical scenario described in the text?
What is the likelihood of a bag being dangerous in the hypothetical scenario described in the text?
What strategy does the text suggest for a doctor deciding whether to operate on a young woman with a breast lump?
What strategy does the text suggest for a doctor deciding whether to operate on a young woman with a breast lump?
Signal detection theory is concerned with
Signal detection theory is concerned with
What is an example of internal noise in perception?
What is an example of internal noise in perception?
How does external noise affect perception?
How does external noise affect perception?
In what situations can noise be a serious problem?
In what situations can noise be a serious problem?
What is the hit rate after training and using new image-enhancing software?
What is the hit rate after training and using new image-enhancing software?
What is the false alarm rate after lowering the criterion for what counts as dangerous?
What is the false alarm rate after lowering the criterion for what counts as dangerous?
According to Signal Detection Theory (SDT), what does it mean to adopt a liberal criterion?
According to Signal Detection Theory (SDT), what does it mean to adopt a liberal criterion?
In SDT, what does it mean to adopt a conservative criterion?
In SDT, what does it mean to adopt a conservative criterion?
What is the symbol used in SDT to represent the criterion or bias?
What is the symbol used in SDT to represent the criterion or bias?
What is the difference between biases (criterion shifts) and sensitivity in SDT?
What is the difference between biases (criterion shifts) and sensitivity in SDT?
Which area under the curve in Figure 6 represents the proportion of hits given that the signal exceeds the criterion?
Which area under the curve in Figure 6 represents the proportion of hits given that the signal exceeds the criterion?
Which area under the curve in Figure 6 represents the proportion of false alarms given that it is noise which exceeds the criterion?
Which area under the curve in Figure 6 represents the proportion of false alarms given that it is noise which exceeds the criterion?
Which area under the curve in Figure 6 represents the proportion of correct rejections given that there is no signal?
Which area under the curve in Figure 6 represents the proportion of correct rejections given that there is no signal?
Which area under the curve in Figure 6 represents the proportion of misses?
Which area under the curve in Figure 6 represents the proportion of misses?
In Figure 6, where does the neutral criterion lie?
In Figure 6, where does the neutral criterion lie?
In Figure 6, which distribution does the dark purple area represent?
In Figure 6, which distribution does the dark purple area represent?
What does the blue area under the curve in Figure 6 represent?
What does the blue area under the curve in Figure 6 represent?
What does the red area under the curve in Figure 6 represent?
What does the red area under the curve in Figure 6 represent?
What does the dark purple area under the curve in Figure 6 represent?
What does the dark purple area under the curve in Figure 6 represent?
What does the magenta area under the curve in Figure 6 represent?
What does the magenta area under the curve in Figure 6 represent?
Which distribution is used to represent the noise in signal detection theory?
Which distribution is used to represent the noise in signal detection theory?
Where does the neutral criterion lie in Figure 6?
Where does the neutral criterion lie in Figure 6?
What are the four possible outcomes in the response matrix?
What are the four possible outcomes in the response matrix?
What does the symbol d' represent in signal detection theory?
What does the symbol d' represent in signal detection theory?
What does the symbol c represent in signal detection theory?
What does the symbol c represent in signal detection theory?
What is the difference between biases (criterion shifts) and sensitivity in signal detection theory?
What is the difference between biases (criterion shifts) and sensitivity in signal detection theory?
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