Chapter 12 Quiz Review

What does the manipulation of an independent variable involve?

• Researcher control of the administration of the levels

• Participant control of the administration of the levels

• Random assignment of participants

• Elimination of dependent variables

What is the purpose of randomly assigning participants to levels?

• To ensure equal distribution of dependent variables

• To control the manipulation of dependent variables

• To rule out other possible factors

• To ensure unbiased distribution of the independent variable

What problem arises without the manipulation of an independent variable?

• Third-variable problem

• Second-variable problem

• Fourth-variable problem

• Fifth-variable problem

In a between-subjects design, how many levels of the independent variable does each participant receive?

• Only one level

• All levels

• Two levels

• No levels

In a within-subjects design, how many levels of the independent variable does each participant require?

• All levels

• Only one level

• Two levels

• No levels

What is a matched design in the context of experiments?

• Matched on characteristics that may contribute to group differences

• Matched on the same level of the independent variable

• Matched on the same level of the dependent variable

• Matched on random assignment

What is the role of the researcher in manipulating an independent variable?

• Control of the administration of the levels

• Observation of the dependent variable

• Random assignment of the dependent variable

• Elimination of third variables

What is the main challenge without manipulating an independent variable?

• Ruling out other possible factors

• Ensuring participant compliance

• Maintaining random assignment

• Controlling dependent variables

What does a between-subjects design ensure for each participant?

• Receives only one level of the independent variable

• Receives all levels of the independent variable

• Receives no levels of the independent variable

• Receives two levels of the independent variable

What does a within-subjects design require from each participant?

• Requires all levels of the independent variable

• Requires only one level of the independent variable

• Requires no levels of the independent variable

• Requires two levels of the independent variable