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Eyewitness Testiony Quiz (3cc3).docx

Eyewitness Testiony Quiz (3cc3).docx - 1 The effects of...

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1. The effects of weapon focus on eyewitness memory can best be seen as an example of: ( 1 point) Select your answer: 1. change blindness 2. Yerkes-Dodson overload 3. inattentional blindness 4. source monitoring failure 5. none of the above 2. Principle component analysis (PCA): ( 1 point) Select your answer: 1. is a way of characterizing the relationship between an offender's appearance and the identifications of the offender made from mug books, lineups, or composite drawings. 2. is a mathematical way of defining a face-space 3. is a mathematical way of defining a single face. 4. is a way of constructing an offender composite based on a genetic algorithm. 5. none of the above 3. In discussing lab evaluations of Mac-a-Mug composites we noted that: ( 1 point) Select your answer: 1. when participants created Mac-a-Mug composites of former teachers and classmates, other classmates who knew the people in composites were able to name the person depicted less than 5% of the time. 2. participants Mac-a-Mug composites of a stranger were by judges as being not at all similar (1 or 2 on a 10-point likeness scale) to a picture of the stranger. 3. judges were able to match participant's Mac-a-Mug composites to photos of the target less than 5% of the time. 4. judges were able to match Mac-a-Mug composites (drawn by a skilled operator from life) to photos of the target with more than 70% accuracy. 5. all of the above 3 1 5
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4. In discussing the relationships between identification accuracy and identification confidence we noted that: ( 1 point) Select your answer: 1. research suggests a positive relationship between confidence and accuracy for witnesses who make a choice, and a negative relationship for those who don't make a choice. 2. in multiple-trial tests, confidence falls below accuracy when the proportion of target-absent trials is 50% or higher. 3. research suggests that, in multiple-trial tests, the relationship between confidence and accuracy most closely approximates the ideal when the proportion of target-absent trials is about 50% 4. research typically finds correlations between confidence and accuracy of between .40 and .60 5. none of the above 5. Which of the following statements about offender identifications from mug book pictures is NOT TRUE ? ( 1 point) Select your answer: 1. Vewing mug book photos reduces the probability that the offender will be correctly identified in a subsequent lineup, even if the offender's picture was not in the mug book. 2. The later in a mug book the offender's picture appears, the less likely it is to be identified. 3. A person incorrectly identified as the offender from a mug book photo is more likely to be selected in a subsequent live lineup. 4. The offender is less likely to be identified correctly the more mug book pictures the witness has viewed.
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