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Exam 11: Within Subjects Designs

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Question 41

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In a within subjects design, all participants are exposed to _________conditions) of the independent variable.

A) all
B) several
C) one
D) some

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Question 42

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Which of the following is not a disadvantage of a within subjects design?

A) fatigue
B) attrition
C) order effects
D) less statistical variance

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Question 43

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During the late 1980s and the early 1990s the Pepsi Challenge was in full swing.During the challenge, participants were asked to taste cola from both Coke and Pepsi.Once they had tasted both drinks, the participants were asked to report which was better tasting.The results indicated that participants found Pepsi products to be better tasting.What is the independent variable in this study?

Within subject and between subject designs have the same advantages and disadvantages.

Order effects involve making sure that all combinations of the order of presentation occur in a study.

The Pepsi Challenge is a great example of a within subjects design.

A_________ design exposes participants to all levels or conditions to of the independent variable.

During the late 1980s and the early 1990s the Pepsi Challenge was in full swing.During the challenge, participants were asked to taste cola from both Coke and Pepsi.Once they had tasted both drinks, the participants were asked to report which was better tasting.The results indicated that participants found Pepsi products to be better tasting.This is an example of what type of research design?

The degree of spread among data surrounding the mean is known as effect size.

In the Pepsi Challenge, the colas the participants drank were the dependent variable.

Within subject designs require additional steps to ensure that group sizes among conditions of an independent variable are equal.

Carefully review the research matrix presented below.If this is a within subjects design, how many total participants will be used in the experiment? $\begin{array} { | l | l | l | } \hline \text { Rock Music Group } & \text { Rap Music Group } & \text { Hip-Hop Music, Group } \\\hline 30 \text { participants } & 30 \text { participants } & 30 \text { participants } \\\hline\end{array}$

The Pepsi Challenge is a great example of a between subjects design.

Participant fatigue only occurs in between subject designs.

In Chapter 11 we discussed a study known as the Stroop effect.Stroop developed 3 types of stimuli for his study.Each type of stimuli presented a different task that participants had to complete.Stroop then measured the amount of time it took the participants to complete each task.What is the dependent variable in this study?

Within subjects designs are also known as repeated measures designs.

Disadvantages to within subject designs include fewer participants, less statistical variance, and equal group sizes.

What kind of study uses a methodology in which participants are matched on a particular characteristic before being assigned to the different levels of the independent variable?

Tamir et al.2008) conducted a study to see what impact music has on participants playing computer games.The researchers had participants play computer games while listening to angry, exciting, and neutral music.The researchers then measured the participant's performance while listening to each type of music.What is the independent variable in this study?

Within subjects have less_________ due to the same participants being exposed to all levels of the independent variable.