Fichas
Correlations
Fichas del conjunto (27)
- 1what is a correlation?- a measure of how strongly 2 or more variables are related to each other
- DOES NOT show cause and effect - 2what is involved in a correlation?- no manipulation of data, groups or conditions
- no independent or dependent variables
- co-variables - 3sampling techniques:- same as other research techniques
- 4ethical considerations:- same as other research techniques
- 5primary method correlation- when correlation is first thing done through a self report
- 6secondary method correlation- when a correlation is done after an experiment
- e.g. Maguire - 7positive correlation- as one variable increases, as does the other
- 8negative correlation- as one variable increases, the other one decreases
- 9no correlation- when there is no relationship between the co-variables
- 10what should be done in the hypothesis of a correlation?- co-variables need to be operationalised
- 11easiest way to show correlations?- through scatter graphs
- 12scatter diagrams- one variable along each axis
- no cause and effect so does not matter which variable goes on which axis
- dots or crosses - 13what is a correlational coefficient?a number between -1 and 1 that tells us how strong the relationship is between the co-variables
- 14perfect positive correlation1
- 15perfect negative correlation-1
- 16how does a correlation co-efficient work?finds the strength of a relationship using inferential statistics
- 17strong positive correlation+
- 18moderate positive correlation+0.5
- 19weak positive correlation+0.3
- 20no correlation0
- 21weak negative correlation-0.3
- 22moderate negative correlation-0.5
- 23strong negative correlation-0.8
- 24strengths of correlations- makes good pilot study for an experiment
- can research variables that would be unethical to manipulate (e.g. lack of sleep) - 25negatives of correlations- does not show cause and effect
- socially desirable answers
- observer bias or observer effect
- may be misleading (e.g. ice cream and murderers) - 26which statistical test is used to calculate the correlation co-efficient?spearman's rho
- 27what types of hypothesis must a correlation have?- null
- alternative
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- A level (Research Methods) Psychology Fichas sobre Correlations, creado por Katie Crowfoot el 11/01/2019.
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- Katie Crowfoot
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