Correlation Flashcards
1
Q
what is correlation used for
A
a way of measuring the extent to which 2 variables are related- the correlation between them
2
Q
what is the 2 ways used to determine relation ships between variables
A
visual=scatterplot
numerical= correlation coefficient
3
Q
what does a correlation of -.6 tell us
A
neg correlation. but strong strength
4
Q
what does a correlation of 1 tell us
A
positive correlation and a very strong strength
5
Q
what is the assumption for pearsons correlation
A
normality, linearity, related pairs
6
Q
when to use parametric analsysis
A
BOTH your variables are on either an interval or ratio scale
AND you have more than 10 participants
AND both variables are normally distributed
7
Q
A
