Flashcards
Topic 28 - studies using correlational analysis
Flashcards do conjunto (28)
- 1what is correlational analysis?a way of measuring the relationship between 2 co-variables
- 2what must these variables be?continuous
- 3what does a zero-correlation show?the two co-variables have no link
- 4what does a positive correlation show?the co-variables increase together
- 5what does a negative correlation show?as one co-variable increases, the other decreases
- 6what does co-variable coefficient tell you?how closely the co-variables are related
- 7what can the numbers be between?-1 and +1
- 8what would a weak correlation look like on a scattergram?dots widely distributed
- 9what counts as a low coefficient?0 and 0.2
- 10what would a strong correlation look like on a scattergram?dots close together in a diagonal line
- 11what would a high correlation coefficient be?0.5 to 1
- 12what would 3 possible directional hypotheses be for correlational analysis?-there is a positive correlation between variable 1 and variable 2
-there is a negative correlation between variable 1 and variable 2
-Variables 1 and 2 increase together - 13what is an example of a non-directional hypothesis for a correlational analysis?There is a correlation between variable 1 and variable 2
- 14what is a strength of correlational analysis?it may suggest whether or not there is a causal relationship between 2 variables
- 15how does it show this?if there is no correlation, then there is no causal relationship
- 16what can be done if correlation is strong?further investigation as there may be a causal link
- 17what is another strength of correlational analysis?it can be used when it would'nt be ethical or practical to conduct an experiment
- 18why could this be used?it involves no manipulation of variables, just the measurement of behaviour such as intelligence or number of kids in a family
- 19what is a limitation of correlational analysis?it can't show a causal relationship.
- 20what often happens when interpreting correlations?researchers assume a causal relationship has been demonstrated
- 21when is a correlation often portrayed as the cause?stories in the media
- 22what is a second limitation of correlational analysis?may be intervening variables that explain the correlation but are overlooked
- 23what is an example of this?research has shown a positive correlation between day care and sociability
- 24however what may this be due to?the fact that working mothers have more confident, sociable children
- 25so what would the working mother act as?an intervening variable
- 26what is validity?the 'trueness' of a study
- 27what is validity related to?the assessment of each co-variable e.g. how has it been assessed
- 28what is reliability related to?how variables are measured and the consistency of this measurement
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- A-Level Psychology A2 (RESEARCH METHODS) FlashCards sobre Topic 28 - studies using correlational analysis, criado por Charlotte Hewson em 30-04-2015.
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- Charlotte Hewson
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