Yarmey (2004)
- Created by: Emma
- Created on: 16-05-14 11:27
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- Yarmey (2004)
- Aims
- to look at the effects of a disguise on identification in a line-up
- to see if knowning you are taking part in a study would affect idnetification in a line-up
- to see if time effected identification
- Procedure
- 215 males and 375 females
- from 18-70
- they were randomly assigned to a condition
- Two women would approach the participant
- They asked them if they had seen any jewellery or for directions
- After 2 minutes the participant would be approached by the second female researcher
- They ever asked participants to identify the woman then or 4 hours later
- Witnesses were given a questionnaire
- They were then given six photos and asked to identify the woman
- Students were also given the aims of the study and asked to guess what would happen
- All participants were debriefed at the end
- Results
- When the woman was in the photo line-up 49% participants correctly identified her.
- When the woman was not in the line-up 62% correctly identified this
- Participants who were prepared for the test had better recall
- Conclusions
- Participants accounts were right aorund 50% of the time
- Findings correspond with Haber and Haber's (2001) study
- There are practical applications
- Evaluation
- Strengths
- There is reliability because findings support Haber and Baber's (2001) study
- The study has some ecological validity
- The study was well controlled so can be replicated to test for reliability
- Because of the broad range of participants findings can be generalised
- Weaknesses
- Yuillie and Cutshall (1986) found that EWT was accurate
- It does lack some ecological validity
- The findings can only be generalised to similar situations
- Strengths
- Aims
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