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Exam 10: Complex Experimental Designs

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Question 1

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Factorial designs are often employed because:

A) very few variables tend to affect behavior.
B) they give a greater approximation of real-world conditions.
C) two or three independent variables cannot operate simultaneously.
D) combining all levels of each independent variable with all levels of the other independent variables is not possible.

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Question 2

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In a factorial design,a main effect is the _____.

A) effect of one independent variable at one level of another independent variable
B) effect of one independent variable averaged over the levels of the other independent variables
C) only effect of interest
D) effect of dependent variable on the independent variable

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Question 3

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In order to find a curvilinear relationship,the researcher needs to use:

An interaction occurs whenever:

A researcher designs an experiment by manipulating the weight of an individual (normal,over) ;age (young,middle,old) ;and gender (male,female) .How many interactions are possible?

Which of the following is the general format for describing factorial designs?

A researcher designs an experiment by manipulating the following variables: method of presenting material (visual,auditory) ;difficulty level (easy,difficult) ;and amount of material (low,moderate,high) .For a completely independent groups design with 10 participants per group,how many participants would the researcher need?

A factorial design involves:

A researcher finds that for male applicants,the likelihood of being hired for a job increases as their work experience increases.However,for female applicants,the likelihood of being hired is not influenced by the amount of work experience.In this scenario,which of the following is true?

In a 4 × 3 factorial design,for a completely independent groups design with 10 participants per group,how many participants are needed?

Raymond has designed a study to examine sexual arousal to erotic or non-erotic movies in male and female college students.A simple main effect of the type of movie would analyze whether arousal level is different for:

In a study designed to measure aggressive play of boys versus girls who attend public or private schools,which of the following statements is least correct?

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

In a 4 × 3 factorial design,for a completely repeated measures design,how many participants are needed in order to have 20 participants per condition?

Identify the design of a study that manipulates the temperature in a room (warm or cold) ;difficulty of material (easy,difficult) ;and the amount of material (low,moderate,high) .

While analyzing the interaction between age and gender,Reba finds a difference between the likelihood of being hired in young and old applicants when they are females.However,she finds no such difference among young and old applicants that are males.Based on the findings,Reba has examined the:

The main reason for using a 2 × 2 factorial design instead of two separate experiments (with one IV per experiment) is to:

In order to study the effects of personality characteristics on intelligence,a researcher assigned participants into two groups: introverts and extroverts.The researcher then conducted an IQ test and calculated the mean scores of the two groups.Moreover,each of the participants was given a puzzle,and the time taken to solve the puzzle was noted down.In this research,which of the following are the attribute variables?

A researcher manipulates a defendant's appearance (attractive,average,or unattractive) and gender (male or female) to study how these variables affect judgments of criminal behavior.How many interactions are possible in this design?

In a factorial design,a main effect is the effect each _____ variable has by itself.