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Exam 10: Complex Experimental Designs

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Question 31

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A marketing company wants to determine which cola beverage is most preferred by consumers.A group of participants tastes Cola A and then rates the taste.The group then tastes Cola B and rates the taste for this cola.A second group of participants follows the same procedure.However,they first taste Cola B and then Cola A.This is an example of what type of design?

A) 2 x 2 independent groups
B) 2 x 2 repeated measures
C) 2 x 2 mixed factorial
D) IV x PV

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Question 32

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In a study examining the effect of room illumination (low,medium,high) and room temperature (cold,warm,hot) on test performance,how many main effects are possible?

A) 2
B) 3
C) 6
D) 9

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Question 33

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In a factorial design,the effect of a moderating variable is revealed as a(n)

A researcher is interested in variables that may affect an individual's driving ability.He has people drive a course in wet,dry,or icy conditions.In addition,he has them drive a vehicle with or without power steering,and with an automatic or a manual transmission.This design is an example of a ______ factorial.

A researcher is interested in variables that may affect an individual's driving ability.He has people drive a course in wet,dry,or icy conditions.In addition,he has them drive a vehicle with or without power steering,and with an automatic or a manual transmission.In this design,there are ______ possible main effects and ______ possible interactions.

A researcher examined judgments of responsibility for an automobile accident by manipulating the type of injuries received (none,mild,or severe) and the time of the accident (7 a.m. ,12 p.m. ,6 p.m. ,or 3 a.m. ) .How many main effects are possible in this study?

With ____,the results are analyzed as if you had separate experiments at each level of the other independent variable,while _____ examines the effect of an independent variable irrespective of the levels of the other independent variable.

Interactions are often discussed in terms of a moderator variable.A moderator variable

In analyzing the interaction between age and gender,Reba finds a difference in hiring likelihood between young and old applicants when they are females.However,she finds no difference between young and old applicants when they are males.Based on the findings,Reba has examined the

An IV x PV design has

In a factorial design,which variable influences the nature of the relationship between two other variables?

In a study examining the effect of room illumination (low,medium,high) and room temperature (cold,warm,hot) on test performance,how many interactions are possible?

A researcher conducts an experiment in which half of the participants read a story designed to reduce prejudice (story group) ,whereas the other half of the participants read material unrelated to prejudice (control group) .After reading the material,half of the participants describe a minority group while alone,and the other half describes a minority group in the presence of their peers.The dependent variable is the number of positive statements made about the minority group.The mean number of positive statements in the four conditions was: $\begin{array}{r}\text { AlonePeer }\\\begin{array}{lll}\text { Control } & 1 & 2\\\text { Story } & 5 & 1\end{array}\end{array}$ $\begin{array} { l l l } \end{array}$ Although the final conclusions would be based on statistical significance tests,these results indicate a(n)

An investigator wants to test the effectiveness of visualization on sports performance.She randomly assigns participants to two groups.Participants in the visualization group imagine themselves swinging a golf club perfectly for 20 minutes prior to a session on the driving range.Participants in the control group read Golf magazine for 20 minutes prior to a session on the driving range.All participants do this procedure each day for five days.The dependent measure,the average flight distance of the ball,is calculated for each participant after each session.This is an example of a(n) ________ design.

You design an experiment that manipulates the following variables: temperature (low or high) ;illumination level (low or high) ;and time of testing (day or night) .For a completely repeated measures design,how many participants will you need to have 10 participants per condition?

In an experiment that manipulates temperature of a room (warm or cold) ;difficulty of material (easy,difficult) ;and amount of material (low,moderate,high) ,which of the following statements applies to the design of this study?

A study involves a 3 x 4 x 2 factorial design.How many independent variables are being studied?

A researcher states that "anxiety decreased performance irrespective of the participants' motivation levels." This statement tells you that there was a(n)

Which of the following is not true of a 2 x 2 interaction factorial design?

A simple main effect analysis examines