Criminological: Classic Study: Loftus And Palmer Flashcards

1
Q

What were the aims of Loftus and Palmers study?

A

To investigate the accuracy of memory of an event.
To test whether EWTs can be altered by language.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What was the sample of Loftus and Palmer?

A

45 American students

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Describe the procedure of Loftus and Palmers study.

A

5 groups of 9 all shown 7 clips (5-30s) of a car accident.
Then given a questionnaire asking the critical questions.
How fast were the cars going when they _______ each other?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What was the independent variable of Loftus and palmers study?

A

IV= verb used in critical question.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What was the dependent variable in Loftus and palmers study?

A

DV= Estimate of car speed (mph)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What were the results of Loftus and Palmers study?

A

Smashed= 40.5 mph
Hit= 34 mph

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What was the conclusion of Loftus and Palmers study?

A

Language does impact the estimated speed of the ppt. The more powerful the verb was the higher the estimate.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Why did Loftus and Palmer conduct a follow up study?

A

To understand whether the results of the first study were due to bias or distortion.
We’re the memories actually being changed?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the aim of Loftus and Palmers follow up study?

A

Investigate whether estimates of car speed were due to bias or distortion.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What was the sample of Loftus and Palmers follow up study?

A

150 American students

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What was the independent variable of Loftus and Palmers follow up study?

A

IV= verb of ‘hit’, ‘smashed’ or no question asked.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What was the dependent variable of Loftus and Palmers follow up study?

A

DV= speed estimate and whether ppt saw broken glass. (YES/NO)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What was the procedure of Loftus and Palmers follow up study?

A

3 groups of 50, Shown 1 minute clip of car accident.
Questionnaire asked critical question (one group did not) and one week later asked ‘did you see any broken glass?’

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What were the results of Loftus and Palmers follow up study?

A

Smashed= 16 YES 34 NO
Hit= 7 YES 43 NO
Control= 6 YES 44 NO

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What was the conclusion of Loftus and Palmers follow up study?

A

Ppts in the smashed condition assumed there would be broken glass because of the verb used. Their memories were distorted.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Evaluate the generalisability of Loftus and Palmers study.

A
  • 45 American students = ethnocentric and age-locked
    =cannot be applied to middle-aged people from other cultures.
17
Q

Evaluate the reliability of Loftus and Palmers study.

A

+ Standardised Procedure
Eg: all ppts shown the same clip and ask same questions apart from verb.
= Easy to replicate and test for consistency.

18
Q

Evaluate the application of Loftus and Palmers study.

A

+ ‘Smashed’= 40mph ‘Hit’= 34mph
Leading questions can alter memory
=Police should avoid asking leading questions and keep them broad.

19
Q

Evaluate the validity of Loftus and Palmers study.

A
  • Low ecological validity as car accident was stage not real life.
    = Doesn’t represent real-life attention and memory.
20
Q

Evaluate the ethics of Loftus and Palmers study.

A

+ Staged accidents= less distressing for ppts.
- Elements of deception with leading questions.