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Core Study – Bickman (1974)
BATs
ALL Outline Bickman’s research into obedience and the power of uniform (E)
MOST - Plan and collect data on a replication of Bickman’s research
Outline limitations of Bickman's experiment (C)
SOME Explain limitations of Bickman’s research (A)
What makes someone obey?
• Setting
• Number of people around (consensus)
• Culture
• Does the appearance of a person in authority make a difference?
Over to you ...Read pages 55-56 Core Study or your topic
booklet
Create a story board or mind map – there are pictures to help you
Stretch and ChallengeWhy did each person
have to dress up in each costume?
Or Fill in the Study Summary Sheet for Bickman's Field experiment
Bickman 1974
Aim – Does appearance affect how people obey others?
Procedure – • Field experiment• 3 male experimenters – each took it in turn
to dress as a civilian (jacket and tie), milkman, guard uniform (looked like a police officer)
• Gave orders to 153 random pedestrians on a street in Brooklyn, New York
Why did each person have to dress up in
each costume?
What were the orders?
• Picking up litter – ‘Pick up this bag for me.’
• Coin and parking meter – ‘This man is overparked at the meter but doesn’t have any change – give him a dime.’
• Bus Stop – ‘Don’t you know you have to stand on the other side of the pole? This sign says “No Standing”.’
Conclusion
• Demonstrated the power of certain types of uniform.
• Dress can suggest authority.
• When people think someone will punish them, they are more likely to obey.
Do as you are told – or
else!!
Core Study – Bickman (1974)
BATs
ALL Outline Bickman’s research into obedience and the power of uniform (E)
MOST - Plan and collect data on a replication of Bickman’s research
Outline limitations of Bickman's experiment (C)
SOME Explain limitations of Bickman’s research (A)
Limitations of the Experiment?
Discuss the above question in pairs.
Jot down your best idea on the whiteboard
Which were the best ideas and why?
Can you explain why this is a limitation? (A)
Limitations of Bickman’s StudyThere was a lack of control over variables……factors such as crowding, weather and noise could have
affected obedience rates.
The study was unethical…… because participants had not given consent and may have been caused distress, embarassment and
discomfort.
The confederates (wearing the uniform) were all men…
… so there may have been a gender bias in results – would people react the same to women in uniforms?
Limitations of Bickman’s Study
• Pedestrians were selected by opportunity sampling –
• The personality or circumstances of the participants were not known. They might have been in a hurry, depressed or just absent-minded
• The study was only carried out in one city in one country –
• There is evidence that Culture affects obedience levels. So we can’t be sure if passers by from other cities or countries would be as obedient. Culturally Biased research
Add the limitations to the summary sheet
Over to you …• Imagine you were going to try to recreate
Bickman’s Field Experiment in school
• How could we do this?
• Use the planning sheet to help you.
• How could you improve on Bickman's experiment and ensure the findings would be valid and reliable?
Peer Assessment Activity
Look at another group's plan
Would their plan give valid and reliable results?
Would it be ethical?
Give constructive feedback …
2 stars (good points) and a wish (how could they improve?)
Analysing Data• You are going to see the results of an
experiment done previously in Y10
• One person was dressed in prefect uniform and the other was in normal Y10 uniform
• 10 people were asked to pick up litter in each condition
Number of students who obeyed a normal y10
Number of students who obeyed the 'Prefect'
1 3
Analysing Data
• Find the percentage obedience rate of each condition
• number of those who obeyed x 100
total number of people tested
• Draw a bar chart of your data
Can you come to the
same conclusion as
Bickman?
Extension
• In 3s create one street scene each from Bickman’s study
• Make a comic strip with cartoon and speech bubbles or do a role play
• Some pictures are available for you to use.