Term
| What was the aim of Bruce et al's study? |
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Definition
| To investigate the relative recognisability of internal and external features of a facial composite |
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Term
| What was the procedure of Bruce et al's first experiment |
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Definition
10 photos of celebrities made into 3x composites: complete, internal, external
Participants had to match the composite to the photo |
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Term
| What was the procedure of Bruce et al's second experiement? |
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Definition
Used a photo line up made easier or harder wit the use of distracter faces or foils
Participants had to pick out the celeb which matched the compostite (internal/external) |
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Term
| What were the results of Bruce et al's first experiment? |
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Definition
Whole compostites and those of external features were sorted similary at approximately 35% correct
Composites of internal feature 19.5% correct |
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Term
| What were Bruce et al's results for experiment 2? |
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Definition
Composites of external features (42%) were indentified more easily than internal features (24%)
This was consistant across array type |
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Term
| What was the aim of Loftus et al's experiment? |
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Definition
| To provide support for the 'weapon focus' effect when witnessing a crime |
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Term
| What was the procedure of Loftus et al's study? |
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Definition
2 sets of slides shown of people queing in a restaurant
Control group - person B hands cashier a check
Experimental group - person B pulls out a gun
Each slide shown for 1.5 seconds
Participants told it was a study of proactive interference |
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Term
| How was the dependant variable measured in Loftus et al's study? |
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Definition
A 20 item multiple choice questionnaire
Given a line up of 12 photos and had to rate how confident they were of their identification on a scale of 1-6 |
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Term
| What were the results of Loftus et al's study? |
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Definition
Control group - correct person chosen 38.9% of the time
Experimental - 11.1
No diffference in confidence level
eye fixation 3.72 on the gun, 2.44 on the check |
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Term
| What was the aim of Fisher et al's study? |
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Definition
| To test the cognitve interview in the field |
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Term
| Who were the participants in Fisher's study? |
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Definition
| 16 experienced detectives from Florida |
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Term
| What was the procedure of Fisher's study? |
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Definition
detectives recorded selection of interviews over 4 months
Divided into 2 groups, one was trained in CI (4x 60 minute sessions)
Post training interviews recorded and analysed by team blind to conditions |
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Term
| What were the results of Fisher's study? |
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Definition
Trained detectives elicited 47% more information than before, and 63% more information than untrained detectives
No difference in accuracy |
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