• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Example of a field experiment - Piliavin et al, 1969 A victim collapses on the subway

Extracts from this document...

Introduction

´╗┐FIELD EXPERIMENTS Meaning: A field experiment means conducting a scientific experiment in naturally occurring environments, rather than in the laboratory. Method: Field experiments are conducted in natural environments with researchers manipulating the variables. Participants are drawn from random samples and divided into treatment and control groups. The findings for each group are compared. Pros: 1. Since people do not know they are participating in an experiment, demand characteristics are avoided ? people do not alter their behavior to affect the outcome. ...read more.

Middle

This is because the researcher cannot control the external environment and must deal with confounding variables ? extraneous variables that have an unintended effect on the dependent variable. 2. The cost of field experiments is often high; they tend to be very expensive. 3. The mortality rate ? the rate of participants who drop out of the experiment before it is completed ? may be high because they are unaware that an experiment is being conducted. ...read more.

Conclusion

The victim is either a black man or a white man acting as if he is drunk in one condition. In the second condition, the victim is sober, but is carrying a cane and is unsteady on his feet. Two female observers record what happens. The independent variables are: Drunk or cane Black or White Early, Late or No model Model initially sitting in the critical area or adjacent area. The number of people on the train. The Dependent variables are: The time taken to help. The race of the helper. The percentage of trials in which passengers (subjects) left the critical area. The number of comments made. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Psychology section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Psychology essays

  1. An experiment to investigate the effect of categorical organisation on the recall of words ...

    will be debriefed and that they will not come under any distress or harm during this experiment. Although the consent will not enable the participants to be fully informed as there was justified deception. The deception will enable the participants to recall the words using their honest memory capacity and

  2. IB Revision Psych

    Education - Teachers use a lot of behaviourist principles - operant conditioning techniques - Programmed learning and computer assisted learning introduced by Skinner - Positive and negative reinforcement techniques used in training animals E. Cultural Islam and Psychology Is there cultural variation in the acceptance of the learning perspective?

  1. This experiment investigated the effect of the presence of others on the number of ...

    The results can be attributed to the fact that tasks such as word association have responses that are generally well-established, whereas tasks like the problem solving test given to participants (disproving arguments of ancient philosophers) had less established responses. In other words, the probability of answering a question incorrectly was quite high.

  2. EE PSYCHOLOGY

    (McGreevy and Boakes, 2007: 2) Merely by changing the frequencies of certain behaviors conducted by an animal humans are able to benefit from the multiple tasks that other species are capable of performing. By teaching to respond with a specific response under specific conditions many have found new assistance and help from service animals.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work