Piliavin (1969) - Subway Samaritans

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  • Created by: natashapv
  • Created on: 20-06-21 15:45
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  • Piliavin (1969) - Subway Samaritans
    • Research Method
      • Strengths
        • PPs didn't know they were in an experiment - no demand characteristic
        • occurs in the real world so has high ecological validity
      • Weaknesses
        • they didn't give consent and weren't debriefed
        • lots of extraneous variables that could effect the independent variable
      • Field experiment
    • Validity
      • Strengths
        • occurred in the real world - high ecological validity
        • large sample - high population validity
        • no demand characteristics - high internal validity
        • control variables in place - increases internal validity
        • train time was controlled - high internal validity
      • weaknesses
        • Only conducted in America at a certain time meaning the sample will only include certain people
    • Data Type
      • Qualitative data pf the comments people made about the incident
      • quantative data on: the amount of people who helped, how long it took them, gender, race, area they came from, whether they moved out of the critical area
    • Sample
      • strengths
        • 4450 people
        • happened over many days
        • 45% black and 55% white making it generalisable
      • weaknesses
        • could potentially have the same participants
        • only used Americans
        • misses out school children and those who don't use the subway
    • Ethics
      • strengths
        • confidential
        • observed in a non intrusive way
      • weaknesses
        • didn't give consent
        • weren't debriefed
        • they could've been harmed
    • Reliability
      • Strengths
        • large sample
        • repeated it lots of times
        • had a standardised method
      • weaknesses
        • only one black victim and three white victims
        • more cane trails than drunk trails
        • lacks inter-rater reliability as the observers recorded from different places
    • Ethnocentrism
      • It is because they only used American citizens from one area of New York who used the subway at a certain time of day
      • isn't because new york holds a variety of different nationalities within it
    • Results
      • cane victims received help 95% of times
      • drunk victims received help 65% of times
      • help was offered quicker for the cane victim
      • on 60% of trails, help was given by 2 or more people
      • 90% of first helpers were male
      • there was a slight tendency for helping the same race especially in the drunk condition
      • more comments were made about the drunk condition
      • no diffusion of responsibility was found

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