correlations Flashcards
correlations, correlation coefficients, correlational hypotheses
1
Q
what is a correlation?
A
a measure of how strongly 2 or more variables are related to each other
2
Q
what is a positive correlation?
A
as one variable increases, so does the other
3
Q
what is a negative correlation?
A
as one variable decreases so does the other
4
Q
what is no correlation?
A
there is no relationship between the variables
5
Q
what is a correlation coefficient?
A
a description of the extent of how closely the 2 variables are related
6
Q
what is +1 in a correlation coefficient?
A
a perfect positive correlation
7
Q
what is -1 in a correlation coefficient?
A
a perfect negative correlation
8
Q
what does it mean if a correlation is close to 1?
A
it’s strong
