correlations Flashcards
What are co variables?
-Two variables that could be related
What is zero correlation?
There is no relationship between the co variables
What is a positive correlation?
One co variable increases as the other increases
What is a negative correlation?
One co-variables increases as the other decreases, not always at the same rate
What is a correlation?
A way to test a relationship exists between two co variables, measure direction and strength of a relationship
What is a correlation coefficient?
-correlation is expressed as a numerical value
+1-postive correlation
-negative correlation
Strengths of correlation
-research naturally occurring variables
-research naturally occurring topics as no manipulation of variables is needed
-Allows researchers to identify a link between co-variables to be further researched
Weakness of correlation
-No cause and effect. as a correlation does not identify which variable impacts which
-only looks t two variables