Quiz on Quasi-Experiments and Research Design

What is a quasi-experiment?

• A research design with random assignment to groups

• A research design with no comparison made

• A research design with comparison but no random assignment

• A research design with manipulation of all variables

What is a quasi-independent variable?

• A variable that is manipulated in an experiment

• A variable that allows comparison without manipulation

• A variable that is always randomly assigned

• A variable that cannot be compared

Which of the following is a limitation of quasi-experiments?

• Strong causal conclusions

• Random assignment

• Extraneous variables influencing observed differences

• Ethical manipulation of all variables

What is the purpose of using two pretests in a pretest-posttest design?

• To increase the number of participants

• To reduce bias and assess baseline differences

• To eliminate the need for a control group

• To ensure all variables are manipulated

What is the Solomon four-group design?

• A design with no pretests

• A design that combines pretest-posttest with groups that skip the pretest

• A design with only one experimental group

• A design with random assignment only

What is the role of extraneous variables in quasi-experiments?

• They are always controlled

• They influence observed differences

• They are manipulated

• They are eliminated

What is a pretest-posttest design?

• A type of research design where behavior is measured only after a treatment

• A type of research design where behavior is measured both before and after a treatment

• A type of research design where behavior is measured only before a treatment

• A type of research design where behavior is not measured at all

What can history effects result in during a study?

• Increased accuracy of results

• Bias in individual participants

• Improved participant engagement

• Reduced need for control groups

What are nonequivalent groups?

• Groups randomly assigned in a study

• Groups compared in a study where participants are not randomly assigned

• Groups with equal numbers of participants

• Groups with identical characteristics

What is regression toward the mean?

• Participants scoring consistently high

• Participants scoring consistently low

• Participants scoring closer to their personal average over time

• Participants scoring randomly