improving accuracy of EWT

Question 1

supporting evidence

Answer 1

• fischer
• 7 detectives trained in CI
• 9 used the SI
• CI trained detectives gained 47% more info in real interviews than those using SI
• and 63% more info that control of untrained detectives
• suggesting CI is effective at improving EWT

Question 2

high validity of supporting evidence

Answer 2

• fischer used real life detectives
• meaning the study has high ecological validity and findings can likely be generalised to other police and their EWT techniques
• study therefore has high external validity and provides strong supporting evidence for CI improving accuracy of EWT

Question 3

CI is time consuming

Answer 3

• CI is time consuming and requires time, money and resources that most police departments dont have readily available to them
• especially as police are involved in multiple cases at once some of which are time sensitive
• so CI may not be a viable option in all departments
• limited method of improving EWT

Question 4

cost benefit (+)

Answer 4

• CI has positive economic implications
• cost benefit analysis considers the over effect of CI on the justice system even regarding that its time consuming and expensive
• improving EWT improves efficiency of convictions and therefore reduces crime and therefore strain on the police force and the economy
• so it may be worth while taking time to train officers

Question 5

limited use in conviction process

Answer 5

• CI is effective at improving EWT
• however isnt effective in improving recognition of suspects in identity parades and photographs
• therefore has limited use in identifying criminals and convicting them