Chapter 7 - Forensic Psychology Eyewitness Testimony Flashcards

1
Q

A witness who is testifying about what she remembers during a convenience store robbery is using what type of memory?
Refreshed memory
Recognition memory
Recall memory
Repressed memory
Reinstated memory

A

Recall memory

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2
Q

What is another term for the misinformation effect?
Direct question recall effect
Open-ended recall effect
Free narrative effect
Closed-ended recall effect
Post-event information effect

A

Post-event information effect

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3
Q

The belief that the misinformation effect results from instances where the original memory is replaced with a new, incorrect memory is referred to as:
the source misattribution hypothesis
the memory impairment hypothesis
the encoding rejection hypothesis
the misinformation acceptance hypothesis
the reconstructive memory hypothesis

A

the memory impairment hypothesis

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4
Q

What is the most common research method for studying eyewitness issues?
Recall study
Field study
Laboratory simulation study
Archival research
Recognition study

A

Laboratory simulation study

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5
Q

A witness who describes the actions of a culprit relies on ______________, while a witness who identifies the culprit’s voice from a set of voices relies on __________________.
natural memory, prompted memory
verbal cues, non-verbal cues
recall memory, recognition memory
narrative memory, refreshed memory
open-ended memory, direct question memory

A

recall memory, recognition memory

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6
Q

What is one of the most compelling types of evidence?
1. Professional statement
2. Personal beliefs
3. Judge ruling
4. Eyewitness Testimony
5. Facts in the case

A
  1. Eyewitness Testimony
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7
Q

What are factors that affect perception?

A

Stress, change blindness, weapon focus

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8
Q

Describe what is change blindness?

A

Change blindness occurs when a change in a visual stimulus is introduced and the observer does not notice it.
Often not able to see changes that would appear to be perfectly obvious to someone who knows they are going to happen

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9
Q

What are 4 factors that affect encoding stage?

A

Attention, Unexpectedness, Witness Involvement, State of witness

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10
Q

What are 2 types of memory retrieval?

A

Recall memory and recognition memory

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11
Q

What is recall memory?

A

Recall memory is reporting details of a previously witnessed event/person –> E.g., Being asked to describe what culprit looked like based on what you saw and remember
(reporting info you have in your memory)

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12
Q

What is recognition memory?

A

Reporting whether current info is the same as previous info –> E.g., Picking suspect out of lineup
(Compare object in front of you with what is stored in your memory and seeing if the 2 match up)

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13
Q

What are factors that affect retrieval?

A

1.Inferences (people guess
2.Stereotypes (people fill in gaps, blue eyes)
3.Partisanship (biases influence memory)
4.Scripts/ Schemas
5.Emotional Factors (anxiety blocks retrieval)
6.Context Effects (cues trigger memories)
7.Time (memory slippage)
8. Post-event info - Enhancing memory, compromising memory

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14
Q

How do we study Eyewitness issues?

A

Natural observation, Archival data, Laboratory simulation

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15
Q

What did Elizabeth Loftus demonstrate with her study?

A

Elizabeth Loftus is one of the most prominent researchers in area of leading q’s and eyewitness memory. With her study she showed that witness recall can be altered by simple phrasing of a q. So that wording of a question matters in police questioning and leading questions are BAD!

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16
Q

What was the study Elizabeth Loftus conducted?

A

Participants viewed video of car accident and were asked identical questions w one critical variation. One question was how fast were cars going when they hit each other and the other was how fast were cars going when they smashed each other? Smashed reported higher speeds. They were then asked to come back a week later and each group asked if they saw broken glass. It was evident the phrasing of the q altered future recall because the smashed group said they did but no glass was broken.

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17
Q

What are the take home messages of the Loftus and Palmer study?

A
  1. False info or info provided after an event can influence memory
    2.Even minor changes in wording of a q can impact peoples responses
18
Q

What are 3 possible misinformation effects?

A

Misinformation Acceptance Hypothesis, Source Misattribution Hypothesis, Memory Impairment Hypothesis

19
Q

What is Misinformation Acceptance Hypothesis?

A

People are guessing or trying to please the police officer. Some witnesses will guess at the answer that they think the police wants to hear

20
Q

What is Source Misattribution Hypothesis?

A

Witness can recall both memories (accurate and inacurate) however witness cannot remember which one of their memories is incorrect so the witness sometimes chooses the incorrect one

21
Q

What is the Memory Impairment Hypothesis?

A

Suggests original memory is replaced with new incorrect memory. Original memory is no longer accessible and person only has single memory of event which includes wrong info

22
Q

What are factors that affect encoding?

A

Attention, Unexpectedness, Witness involvement, State of witness

23
Q

What are 2 types of memory retrieval?

A

Recall memory, Recognition memory

24
Q

What is estimator variables?

A

Variables that are present at the time of the crime and cannot be changed (age of witness, time of crime)

25
Q

What are system variables?

A

Variables that can be manipulated to increase or decrease eyewitness testimony (type of lineup used)

26
Q

What is the goal of police questioning?
To find the person who is guilty
To get the person in trouble
To collect complete and accurate information

A

To collect complete and accurate information

27
Q

What are some errors with video surveillance?

A

Lighting, Quality, Disguises

28
Q

When does accuracy increase in a voice identification lineup?
Longer voice samples
No accent
Whispering
More foils
a and b

A

a and b

29
Q

When does accuracy decrease in a voice identification lineup?
Whispering or emotion
More foils
Target voice occurs later in lineup
All of the above

A

All of the above

30
Q

What are the guidelines for improvement of lineups procedures?

A
  1. Person conducting lineup should not know which person is the suspect
  2. Witnesses should be told that suspect may or may not be in lineup (shouldn’t feel like have to make identification)
    3.Suspect should not differ from foils based on witnesses description (match to description)
  3. Witness’ confidence should be assessed prior to feedback
31
Q

What are the guidelines for improvement of photo lineups in Canada?

A
  1. Photo lineup should be videotaped
  2. Inform witness that clearing innocent suspects and identifying guilty ones equally important
  3. Lineup should be presented sequentially
  4. Officers should not provide feedback
32
Q

What are 3 bias that can occur in a lineup?
Foil bias, fear bias, sight bias
Clothing bias, Instruction bias, positive bias
Negative bias, race bias,
Clothing bias, Instruction bias, Clothing bias

A

Clothing bias, Instruction bias, Foil bias

33
Q

What is clothing bias in a lineup?

A

Occurs when suspect is only member in lineup wearing similar clothing to that worn by perp

34
Q

What is foil bias?

A

Occurs when suspect is the only lineup member that matches the description of perpetrator

35
Q

What is instruction bias?

A

Police fail to mention to witness that culprit may or may not be present in lineup

36
Q

What is a case of lineup misidentification?
Aidan Thompson and ronald
Andy Thompson and aidan
Darcy Thomas and charles
Jennifer Thompson and Ronald Cotton

A

Jennifer Thompson and Ronald Cotton

37
Q

What are 2 different lineup procedures?
Straight and curved
Old and new
Large lineup vs small
Simultaneous, sequential

A

Simultaneous, sequential

38
Q

What is the difference between a simultaneous lineup and sequential lineup?

A

Simultaneous lineup is where all members are presented at the same time to witness and a sequential lineup is where each member of lineup is presented one at a time

39
Q

What type of judgement does a simultaneous lineup rely on?

A

Relative judgement - based on comparisons within a specific context rather than using an absolute standard (which of people present most match actual culprit)

40
Q

What type of judgement does a sequential lineup rely on?

A

Absolute judgement - Decide if person is or is not culprit before seeing another person

41
Q
A