Field Experiments Flashcards
Practical
Concise conclusions can be drawn from quantitative results
However not possible to control variables as closely
Ethical
Usually no consent is obtained to avoid contaminating the results
Reliability
All variables aren’t controlled
Validity
Higher validity because they take place in normally occurring social settings however the Hawthorne effect may cause the subjects to act differently
Theoretical
More susceptible to sample bias as participants are often not randomly allocated to experimental conditions
Representativeness
Practically it is possible to do field experiments in large institutions
Hawthorne effect
Respondents may act differently just because they know they are part of an experiment
Example
Rosenthal and Jacobson 1968-
Aims was to measure the effect of high teacher expectation
Informed teachers that 20% of pupils were likely to ‘spurt’ when in reality they were random
Sputters had gained 12 IQ points