Experimental Design Quiz

What is the purpose of the control group?

• To increase participant numbers

• To manipulate the independent variable

• To compare with the experimental group

• To study with music

What is the process of allocating participants to groups called?

• Statistical analysis

• Data collection

• Experimental design

• Random sampling

What type of design involves participants experiencing only one condition?

• Cross-sectional design

• Independent measures design

• Repeated measures design

• Matched pairs design

What is a potential extraneous variable in independent measures design?

• Order effects

• Participant variables

• Counterbalancing

• Practice effects

How can random allocation improve a study's validity?

• By using matched pairs

• By increasing test difficulty

• By reducing participant variables

• By ensuring equal group sizes

What is an order effect?

• A type of participant variable

• A method of data collection

• A result of random allocation

• A change in performance due to practice or fatigue

What technique can reduce the impact of order effects?

• Independent measures

• Random sampling

• Counterbalancing

• Matched pairs

In a matched pairs design, participants are matched based on which factors?

• Participants are matched based on characteristics like age, gender, or baseline measures relevant to the study to control for confounding variables

• Participants are matched based on test scores

• Participants are matched based on random selection

• Participants are matched based on study habits

What is a strength of repeated measures design?

• Eliminates participant variables

• Reduces the need for random allocation

• Increases the number of participants

• Simplifies data analysis

What is a weakness of independent measures design?

• Reduced sample size

• More complex data analysis

• Higher likelihood of order effects

• Increased participant variables