Correlations Flashcards
Correlation (Definition:)
The interdependence of variable quantities.
Co-factors (Definition:)
The variables which their correlational relationship is being studied.
What are the three types of correlation?
- Positive correlation
- Negative correlation
- Zero correlation
Which type of graph do we plot correlations on?
Scattergrams.
Which type of correlation is being described?
As one co-variable increases, the other co-variable increases.
Positive correlation.
Which type of correlation is being described?
As one co-variable increases, the other co-variable decreases.
Negative correlation.
Which type of correlation is being described?
When there is no correlation between the co-variables.
Zero correlation.
What is the correlation coefficient for a perfect positive correlation?
+1.
What is the correlation coefficient for a perfect negative correlation?
-1.
What is the correlation coefficient for no correlation whatsoever?
0.
What is a correlation?
A mathmatical technique in which the researcher investigates an association between two variables.
What is a co-variable?
The variables investigated within a correlation.
What is a scattergram?
A graph in which correlations are plotted on.
T / F:
- Correlations are a method of analysis rather than a research method.
True - (but it is easier to say ‘correlations’ than ‘studies with correlational analysis’.)
Why are co-variables not called the IV and DV?
Because correlation involves the association between variables rather than the a cause an effect relationship.