Quantitative and Qualitative Data - Methods

notes on quantitative and qualitative data for methods

a2 psychology with aqa

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  • Created by: Cara
  • Created on: 29-06-12 13:45
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Quantitative and qualitative data
As well as selecting a method and a sample, psychologists also need to make a choice about the type
of data they wish to collect
This may be dictated by the method they choose
Quantitative data
Numerical data which can then be subjected to various statistical analysis
Qualitative data
Verbal or written (descriptive), rather than numerical data
Strengths of quantitative data:
Can be useful in generating new theories
Easy to replicate
It is possible to control for the effects of extraneous variables
Can identify `cause and effect'
Can be used to test predictions made by previous theories
Limitations of quantitative data:
Tends to have low ecological validity
Often the research has little relevance to participants
Can generate huge amounts of data which can be time consuming and difficult to analyse
Not appropriate in all research areas such as clinical psychology
Strengths of qualitative data:
Can be used in situations where it is inappropriate to use quantitative methods, for example,
counselling and clinical psychology

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