Correlations Flashcards
1
Q
What are the two types of Correlations?
A
- Positive (two variables rise or fall together)
- Zero correlation is when there is no relationship between the variables
2
Q
What are the strengths of Correlations?
A
- A useful preliminary tool for research, asses strength and direction of a relationship, they provide a precise and quantifiable measure of how 2 variables are related. Suggest ideas for possible reasearch?
- used as a starting point to access possible patterns before committing to a study.
- Quick and economical as no controlled environment/manipulation of variables needed. Secondary data can be used, less time-consuming
3
Q
What are the limitations of Correlations?
A
- Only tells us how variables relate and not why, cannot demostrate cause and effect or establish the direction of effect.
- Potential untested variable causing relationship (intervening variable)
- Can be misused/misinterpreted, Relationships can sometimes be presented as causal when they aren’t especially be media
4
Q
What is the difference between correlations and experiments?
A
- No IV DV in correlations (just co-variables)
- Cause-and-effect relationships cannot be established
5
Q
What are Correlations?
A
- Plotted on a scattergram and tells us strength and direction of a relationship between 2+ co-variables