Correlations Flashcards
What is a correlation
An analysis of association between continuous covariables
What is a positive correlation
Dots on scattergram from bottom left to top right, covariables increase together
What is a negative correlation
Top left to bottom right, as one covariable increases the other Decreases
What is zero correlation
No significant association
What can a correlation or hypothesis be
Directional or null
What is a correlation coefficient
A number between +1 and -1 to show strength of correlation
What is a limitation of correlational data
Cannot draw a causal conclusion
What is the danger of correlation research
People may act on erroneous causal conclusions
Why might there seem to be a correlation
Due to intervening variables
What is the issue with the measurement of variables
May lack validity, poor sampling mean mean low generalisability
What did correlations permit a researcher to do
Identify a relationship but they just are fine further investigation or may rule out any causal link
