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

An r value of -0.85 indicates a strong negative correlation, meaning as stress increases, sleep quality tends to decrease.

Question 2

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

Accepted Answer

Median

Answer

The median is resistant to outliers because it represents the middle value and is not pulled by extreme scores.

Question 3

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

Accepted Answer

6

Answer

A 2x3 factorial design has 2 × 3 = 6 total conditions representing all combinations of both independent variables.

Question 4

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

Accepted Answer

To control for order effects

Answer

Counterbalancing distributes order effects evenly across conditions so that sequence does not systematically bias results.

Question 5

A Type II error occurs when a researcher:

Accepted Answer

Fails to reject a false null hypothesis

Answer

A Type II error (false negative) happens when the researcher fails to detect a real effect and incorrectly retains the null hypothesis.

BAPSY - Bachelor of Arts in Psychology Practice Test