experimental research designs Flashcards

1
Q

classic experimental design

A
  • DV measured before and after intervention
  • control group
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2
Q

classic experimental design

positive

A

+ internal validity

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3
Q

control group

A
  • accounts for change in DV
  • placebo affect
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4
Q

control group composition

A

randomly assinged or matched on similar characteristics to have equivalence

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5
Q

external validity

definition

A

extent results can be generalised to the general population

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6
Q

problems with external validitiy

A
  • randomisation can be difficult ot achieve
  • volunteer bias
  • ‘Hawthorne effect’ reactive being observed
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7
Q

feild experiments positives

A

+ improves external validity
+ sample is repersentitve
+ greater mundane realism

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8
Q

quasi- experiment

definition

A

naturally occuring IV e.g gender, age

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