Eyewitness Study - Morgan et al.

Question 1

Purpose

Answer 1

-Examine the effects of lineup type on eyewitness identification accuracy

Question 2

Hypothesis

Answer 2

-A higher accuracy for sequential lineup than live and photo lineup

Question 3

Survival School Experimental Phase

Answer 3

-Wilderness evasion
-Captured and held in mock POWC
-Deprived for 48 hours (sleep, food) and 12 hours in isolation
-Underwent 2 interrogations
~high- and low-stress
~4 hours between interrogations

Question 4

Participants

Answer 4

-509 or 530 were active-duty military personnel enrolled in military survival school training

Question 5

Types of Interrogation Used

Answer 5

1. High stress - threat and use of real physical violence

2. Low stress - no physical confrontation, interrogator ‘tricks’ participant to reveal information

Question 6

Types of Lineups Used

Answer 6

• Between subjects
• Live lineup
• Simultaneous photo array
• Sequential photo array