MET Correlations Flashcards
What is a correlation?
Measures relationship between two covariables, no manipulation of IV and measuring of DV
How do you write correlation results?
Strong/weak positive/negative/zero correlation
Can have numerical answers - strongest is 1.0 or -1.0 and the weakest would be 0 to 0.2/-0.2
What can you look for visually on the graph when trying to work out correlations?
Direction
Clustering
Ellipse
Empty spaces
How are hypothesises written for correlations?
There will be a positive/negative/zero correlation between … and …
Weakness of correlations
Cannot draw conclusions about causal/cause and effect relationships from a correlational study because no IV is manipulated and DV measured like in an experiment, two covariables are only analysed
Strengths of correlations
Practical - useful when experiments would not be practical
Ethical - useful when experiment would not be ethical