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

Question 1

A researcher wants to determine whether sleep deprivation causes decreased reaction time. Which research design is most appropriate?

Accepted Answer

True experimental design

Answer

Correlational study

Answer

Naturalistic observation

Answer

Case study

Question 2

What is the primary purpose of a double-blind procedure in psychological research?

Accepted Answer

To reduce both participant and researcher bias

Answer

To increase the sample size

Answer

To ensure random sampling from the population

Answer

To replicate findings across multiple studies

Question 3

Which measure of central tendency is most affected by extreme outliers in a data set?

Accepted Answer

Mean

Answer

Median

Answer

Mode

Answer

Interquartile range

Question 4

A psychologist notices that students who exercise more frequently also report lower stress levels. What conclusion can be drawn?

Accepted Answer

Exercise and stress are negatively correlated

Answer

Exercise causes reduced stress

Answer

Reduced stress causes more exercise

Answer

There is no relationship between the variables

Question 5

In a study with 200 participants, what does a p-value of 0.03 indicate?

Accepted Answer

There is a 3% probability the results occurred by chance alone assuming the null hypothesis is true

Answer

The effect size is 3%

Answer

97% of participants showed the expected effect

Answer

The study has a 3% error rate in measurement

Question 6

Which ethical principle requires researchers to inform participants about potential risks before they agree to take part in a study?

Accepted Answer

Informed consent

Answer

Debriefing

Answer

Confidentiality

Answer

Beneficence