Correlation

Question 1

Correlation

Answer 1

investigates the relationship between two dependent variable

Question 2

How do we represent correlation?

Answer 2

using a scatterplot
predictor value on the X axis
other value of the Y axis

Question 3

positive correlation

Answer 3

as one variable gets bigger, the other variable gets bigger

Question 4

negative correlation

Answer 4

as one variable gets bigger, the other variable gets smaller

Question 5

zero correlation

Answer 5

no consistent relation between the variables

Question 6

Pearson r

Answer 6

A numerical way to express correlation commonly used by psychologists

Question 7

what are the range of R

Answer 7

-1 to +1

Question 8

Linear relationship

Answer 8

point generally fall of a straight line

Question 9

curvilinear relationhsip

Answer 9

increase in x results initially in an increase in y, and then a decrease in y

Question 10

How can we deal with a directionality problem?

Answer 10

doing a cross-legged-panel correlation procedure

Question 11

Cross-legged-pannel

Answer 11

allows to do correlations over time, as we long as we measure the same variables on the same individuals. this can help indicate direction