Question 1

What is an extraneous variable in psychology?

Accepted Answer

A variable that is not of primary interest in a study but can potentially influence the results.

Answer

A variable that is only present in non-experimental studies.

Answer

A variable that is directly related to the hypothesis being tested.

Answer

A variable that is used to measure the dependent variable.

Answer

A variable that is controlled by the researcher in a study.

Question 2

Which of the following is an example of an extraneous variable in a psychology study?

Accepted Answer

The temperature of the room where the study is conducted.

Answer

The age of the participants in the study.

Answer

The survey questions used to collect data.

Answer

The dependent variable being measured.

Answer

The variable being manipulated by the researcher.

Question 3

In a psychology experiment, what is the purpose of controlling extraneous variables?

Accepted Answer

To ensure that any changes in the dependent variable can be confidently attributed to the independent variable.

Answer

To eliminate any sources of bias in the study.

Answer

To increase the sample size and obtain more reliable results.

Answer

To measure the effect size and determine statistical significance.

Answer

To randomize the assignment of participants into experimental conditions.

Question 4

Which of the following is an example of an extraneous variable in a psychological experiment?

Accepted Answer

Time of day when the experiment is conducted.

Answer

The dependent variable being measured in the experiment.

Answer

The age of the participants in the experiment.

Answer

The hypothesis being tested in the experiment.

Answer

The experimental manipulation in the experiment.

Question 5

Which of the following is an example of an extraneous variable that can affect the results of a psychology study?

Accepted Answer

Participant's level of motivation.

Answer

The statistical analysis techniques used in the study.

Answer

The duration of the study.

Answer

The experimental design used in the study.

Answer

The size of the sample used in the study.

Question 6

What is the purpose of random assignment in a psychology experiment?

Accepted Answer

To create equivalent experimental groups and minimize the influence of extraneous variables.

Answer

To collect data through observations and interviews.

Answer

To manipulate the independent variable and measure its effect on the dependent variable.

Answer

To control for confounding variables and establish causal relationships.

Answer

To ensure that participants are representative of the target population.

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