• 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. IB Revision Psych

    Result was a split between science and the church, and this seems to have caused a split between science and religion. - Ultimately, science victorious due to compelling evidence - Resulting in the notion that religion is backward, superstitious and regressive - and the growth of secularism, associated with being rational, liberated and progressive.

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

    The organisation is changed from a hierarchy to an unrelated presentation. Experimental (Directional) hypothesis (H�): There will be statistically significantly more recall of words put into a hierarchy than the recall of words put into an unorganised fashion. Due to the fact that there were two separate groups of students

  1. EE PSYCHOLOGY

    Stating that 'man' is given authorative 'dominon' over animals. The dualism argument that inaugurated due to Ren� Descartes proposes that the animal is different, not having a soul and less divine creation of God. (Caroll & Overmier, 2001 :4) If the animal is so different to a human then how can psychology generalize its research knowledge for mans benefit?

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

    Other participants were asked to work in groups while seated around the table. Tasks performed by participating individuals included word association, vowel cancellation, multiplication, problem solving and finally judgment of odors and weights. The results that were obtained showed that in all tasks apart from problem solving and judgment test, overall performance was better for individuals working in groups.

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