Posted by **kelli** on Thursday, October 6, 2011 at 4:51pm.

Describe in words the nature of the relationship between each pair of variables as indicated by the value of the correlation coefficient. Be sure to include

a. the direction of the relationship.

b. the strength of the relationship.

c. a verbal description of the way the variables "go together."

d. an appropriate graph of the relationship. (for the graphing portion, describe what the scatterplot should look like in terms of slope, linear characteristics, etc)

1. r = -.96 between craving for pizza and ability to concentrate on studying.

2. r = +.02 between length of marriage and marital satisfaction.

3. r = +.55 between parent and child intelligence test scores.

4. r = -.90 between amount of alcohol consumed and performance on a motor coordination task.

5. r = +.75 between amount of money won and the number of hot dogs purchased at race tracks.

6. r = +.67 between scores on a hyperactivity scale and an aggressiveness scale.

7. r = -.82 between a job applicant's age and likelihood of being hired.

8. r = +.06 between the number of yearly predictions by psychics and the number of correct predictions.

I NEED HELP AM NOT UNDERSTANDING THIS.

- HELP ASAP ( COLLEGE STATISTICS) -
**PsyDAG**, Saturday, October 8, 2011 at 4:34pm
Positive r, both variables increase/decrease together. The direction is from lower left to upper right.

Negative r, one variable increases while the other decreases. Direction is from upper left to lower right.

r = ± 1 = prefect predictability, straight line. r = 0 = no predictability, scores spread randomly. As approach 1, the spread gets less and less, and predictability gets greater.

The above information should help you answer the above questions.

- HELP ASAP ( COLLEGE STATISTICS) -
**htgy**, Friday, January 13, 2017 at 7:47pm
1

## Answer This Question

## Related Questions

- social psy - ) Researcher wants to look at the correlation between class ...
- psychology - In psychology,correlation measure the strength of the link between ...
- Statistics - The linear correlation coefficient, r, is a numerical measure of ...
- Statistics - True or false? The linear correlation coefficient, r, is a ...
- statistics - Construct a scatterplot. b. Draw a regression line through the data...
- Statistics - 5. For the data presented below, answer the questions that follow. ...
- Math liberal arts 2 - A unitless measure that describes the strength of the ...
- statistics - In a study of the relationship between self-concept and achievement...
- statistics - A student computes the correlation between two variables in a ...
- STATISTICS - A) If a regression experiment has correlation coefficient r= 0.75, ...

More Related Questions