HL Quiz on Reliability and Validity in Psychology

What is reliability in psychology?

• The extent to which research can be replicated over time.

• The degree to which a test measures what it claims to measure.

• The influence of extraneous variables on the results.

• How valid the conclusions of a study are.

Which of the following best describes validity?

• The consistency of a research study or measuring test.

• The ability of a test to produce the same results over time.

• The extent to which a test measures what it is supposed to measure.

• The fairness of a test in treating all participants equally.

What is the difference between internal and external validity?

• Internal validity is about generalizing results; external validity is about control.

• Internal validity refers to the accuracy of conclusions, while external validity refers to generalizing findings to other contexts.

• Internal validity involves repeatability; external validity focuses on measuring outcomes.

• Internal validity measures participant honesty; external validity tests environmental factors.

Which method can be used to check reliability?

• Using different participants for the same study.

• Measuring the same participants at different times using the same test.

• Using different questions for each participant.

• Conducting the study in multiple locations.

Which of the following increases external validity?

• Using a random sample of participants from different backgrounds.

• Conducting the study only once with a small sample.

• Allowing extraneous variables to affect results.

• Testing participants in highly controlled lab conditions.

How can a researcher check the internal reliability of a test?

• By asking participants if they found the test easy to understand.

• By using split-half reliability, where the test is split into two and both halves give similar results.

• By comparing the test to another unrelated test.

• By conducting the study in different cultural contexts.

What is a way to increase internal validity in an experiment?

• Conducting the experiment in a natural environment.

• Using control variables to minimize the impact of extraneous factors.

• Only allowing participants from one specific group.

• Having a large sample size.

Which of these is an example of improving external reliability?

• Testing the same group of participants repeatedly.

• Using a variety of tools and measurements for different participants.

• Ensuring that multiple researchers get consistent results with the same procedure.

• Using random sampling to increase diversity.

What type of validity is concerned with whether the results can be applied to the real world?

• Construct validity

• Content validity

• Internal validity

• Ecological validity

Which method can be used to check external validity?

• Replicating the study with different participants in different settings.

• Testing participants at different times using the same test.

• Asking participants if they found the study interesting.

• Ensuring the experiment is conducted in a lab setting.