Piliavin et al

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  • Created by: jessie
  • Created on: 07-02-14 19:45
what is the aim of the study?
whether diffusion of responsibility does apply in all situations, what other factors might influence helping behavior
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what type of design method was used?
independent design
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what type of experiment was conducted?
field experiment
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what was the IV of the experiment?
two independent variables - four conditions - lame or drunk, black or white,
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what was the DV of the experiment?
how many people helped in each condition, gender of helpers, what passengers said, how many people moved away in which condition
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what was the sample of the experiment?
4,500 passengers on the subway, average of 43 passengers in each trial, 55% white and 45% black
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how the was the sample selected?
opportunity sampling
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what was the procedure of the experiment?
teams of four students conducted the experiment, victim always young male, either with cane or bottle in paper bag, role model young male, collapse 70 seconds into journey,
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how was data collected?
two female students acted as observers and collected data on who helped
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what controls were there in the experiment?
same train journey - always 125th street to 59th street (8 minutes), same two male victims, same two female observers, always use the critical area of carriage, not carried out in rush hour
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what were the findings of the study?
in 95% of the lame trials, the victim was helped immediately regardless of skin color, but immediate help was offered in only 55% of the drunk trials
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what other findings were there?
the first helper was usually male, some evidence of same race helping in the drunk condition
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what qualitative data was collected?
examples of passengers comments
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what conclusions were made from the experiment?
an emergency situation creates a sense of empathy which increases if a sense of identity is felt with the victim or if the bystander is close physically to the victim
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what other conclusions were made?
cost decision calculation - a decision is made between the possible cost of helping and the possible reward for helping
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what ethical issues arose from this experiment?
participants did not give consent, participants were deceived, unable to withdraw until the train stopped at the next station, were not debriefed
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independent design

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what was the IV of the experiment?

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what was the DV of the experiment?

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