BAPSY BAPSY Bachelor of Arts in Psychology Psychological Research and Statistics Questions and Answers 2

Question 1

A researcher finds a correlation of r = -0.85 between stress levels and sleep quality. What does this indicate?

Accepted Answer

A strong negative relationship between stress and sleep quality

Answer

No meaningful relationship between the variables

Answer

A weak positive relationship between stress and sleep quality

Answer

A causal effect of stress on sleep quality

Question 2

Which measure of central tendency is most appropriate for a data set with extreme outliers?

Accepted Answer

Median

Answer

Mean

Answer

Mode

Answer

Standard deviation

Question 3

In a 2x3 factorial design, how many conditions are there in total?

Accepted Answer

6

Answer

5

Answer

8

Answer

3

Question 4

What is the primary purpose of counterbalancing in a within-subjects design?

Accepted Answer

To control for order effects

Answer

To increase the sample size

Answer

To ensure random assignment

Answer

To eliminate confounding variables entirely

Question 5

A Type II error occurs when a researcher:

Accepted Answer

Fails to reject a false null hypothesis

Answer

Rejects a true null hypothesis

Answer

Accepts the alternative hypothesis correctly

Answer

Uses a sample that is too large

Question 6

Which sampling method gives every member of the population an equal chance of being selected?

Accepted Answer

Simple random sampling

Answer

Convenience sampling

Answer

Snowball sampling

Answer

Purposive sampling

A researcher finds a correlation of r = -0.85 between stress levels and sleep quality.What does this indicate?