Question 1

Which of the following is true about reporting statistics in apa?

a. You do not need to report the degrees of freedom

b. All numbers should be bolded

c. Numbers should generally be reported to 2 decimal places

d. All numbers 1-9 are italicized.

Question 2

If a psychologist interested in the relation between number of years working for a particular company and loneliness at work surveyed 40 workers at this company and figured a correlation between these two variables of -.90, the correlation is considered a

a. strong negative linear correlation.

b. weak positive linear correlation.

c. strong positive linear correlation.

d. weak negative linear correlation

Question 3

The difference between a positive correlation and a negative correlation is that

a. in a negative correlation, high scores go with low scores and low with high; in a positive correlation, high scores go with high scores and low with low.

b. in a negative correlation, high scores go with high scores and low with low; in a positive correlation, high scores go with low scores and low with high.

c. negative correlations are curvilinear; positive correlations are straight lines.

d. negative correlations represent a weak relationship; positive correlations represent a strong relationship.

Question 4

When figuring a correlation coefficient, each individual's deviation score on one variable is multiplied by the individual's deviation score on the other variable because the result will always be

a. negative if the individual has low scores on both variables.

b. positive if the individual has high scores on both variables

c. positive if the individual has a high score on one variable and a low score on the other variable.

d. smaller as the variance of the scores on each variable becomes smaller

Question 5

When conducting attest for the correlation coefficient in a study with 16 individuals, the degrees of freedom will be

Question 6

Assume you have a sample of 52 students and you hypothesize a positive correlation between statistics grades and IQ.If the correlation between IQ scores and statistics grades is .17, what would t be?

Question 7

For the above question, what would be the critical t value that you would use?Make sure you use 3 decimal places in your answer.

Question 8

Based on the critical t and the calculated t, is there a significant correlation between IQ and statistics grades?

a. Yes

b. No