Experimental Design
Psychology ⇒ Research Methods in Psychology
Experimental Design starts at 10 and continues till grade 12.
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See sample questions for grade 11
A psychologist conducts an experiment to test whether background music affects test performance. She assigns 30 students to take a test with music and 30 students to take the test in silence. What is the dependent variable?
A researcher finds that participants perform better on a memory test after drinking coffee. What is the dependent variable in this experiment?
A researcher wants to test if listening to classical music improves concentration. She randomly assigns 50 students to listen to classical music while studying and 50 students to study in silence. What is the control group in this experiment?
A researcher wants to test the effect of noise on reading comprehension. She assigns participants to either a quiet room or a noisy room and measures their test scores. What is the independent variable?
A researcher wants to test the effect of sleep on memory. She assigns participants randomly to either a group that sleeps 8 hours or a group that sleeps 4 hours, then tests their memory. What is the independent variable in this experiment?
Define operationalization in the context of experimental design.
Describe one way to reduce participant bias in an experiment.
Describe the difference between a laboratory experiment and a field experiment.
Describe the purpose of using a matched pairs design in experiments.
Explain the difference between an extraneous variable and a confounding variable.
Explain the term 'order effects' in repeated measures design.
Explain why ecological validity is important in experimental design.
Explain why random sampling is important in experimental design.
In a study, Group A receives a new drug and Group B receives a sugar pill. Neither the participants nor the researchers know who is in which group. What type of experimental control is being used?
What is the main advantage of using a double-blind procedure in an experiment?
What is the main difference between random sampling and random assignment?
What is the main purpose of using a control group in an experiment?
