posted by deb on .
) Researcher wants to look at the correlation between class attendance and grade in class (higher numbers indicating a higher grade). The researcher found the following result r = .82. The correlation coefficient tells researchers two pieces of information, the strength of the relationship and the direction of the relationship.
a. What does the strength of the relationship mean?
b. What does the direction of the relationship mean (define positive correlation and negative correlation)?
c. Interpret the findings of the research presented.
a. how close the value is to ± 1, which indicates perfect predictability and farther from 0, which indicates no predictability.
b. Positive correlation = variables increase/decrease together. Negative correlation = one variable increase when the other decreases.
c. I'll let you do the interpretation.