Question

1. For a normally distributed set of scores, the 50th percentile is equivalent to

a. the mean and the median of the raw scores

b. need more information

c. depends on the size of the standard deviation

d. depends on the variability of scores

2. All other things being equal, as the strength of the relationship between two continuous variable increases

a. the SEE increases

b. prediction accuracy decreases

c. prediction is unaffected by the strength of the relationship between two variables

d. prediction accuracy increases

3. From the information given below, predict the 1st exam score for a person with a practice test score of 83.  

Correlation = .98

Practice Test 1st Exam

Mean 70 65

SD 10 9

(Answer choices)

a. 66.30

b. 75.00

c. 76.47

d. 73.82

4. Assume you are going to predict 1st exam scores from practice test scores. Using the information below, determine the standard error of estimate for 1st exam scores.

Correlation = .98

Practice Test 1st Exam

Mean 70 65

SD 10 9

Group of answer choices

a. 1.79

b. 1.4

c. .199

d. can only determine the standard error of estimate for the practice test scores

Answer 1