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A professor and his graduate students conducted a study testing the effects of levels of collaborative learning (Factor A) and levels of constructivist instruction (Factor B) on student learning (dependent variable) .Their partial summary table is shown here.What was A professor and his graduate students conducted a study testing the effects of levels of collaborative learning (Factor A) and levels of constructivist instruction (Factor B) on student learning (dependent variable) .Their partial summary table is shown here.What was ? A) B) C) D) ? A professor and his graduate students conducted a study testing the effects of levels of collaborative learning (Factor A) and levels of constructivist instruction (Factor B) on student learning (dependent variable) .Their partial summary table is shown here.What was ? A) B) C) D)


A) A professor and his graduate students conducted a study testing the effects of levels of collaborative learning (Factor A) and levels of constructivist instruction (Factor B) on student learning (dependent variable) .Their partial summary table is shown here.What was ? A) B) C) D)
B) A professor and his graduate students conducted a study testing the effects of levels of collaborative learning (Factor A) and levels of constructivist instruction (Factor B) on student learning (dependent variable) .Their partial summary table is shown here.What was ? A) B) C) D)
C) A professor and his graduate students conducted a study testing the effects of levels of collaborative learning (Factor A) and levels of constructivist instruction (Factor B) on student learning (dependent variable) .Their partial summary table is shown here.What was ? A) B) C) D)
D) A professor and his graduate students conducted a study testing the effects of levels of collaborative learning (Factor A) and levels of constructivist instruction (Factor B) on student learning (dependent variable) .Their partial summary table is shown here.What was ? A) B) C) D)

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When an experiment design has two factors but one factor involves related samples while the other factor involves independent samples,we should perform a


A) two-way within-subjects ANOVA.
B) two-way between-subjects ANOVA.
C) two-way mixed-design ANOVA.
D) two-way independent-related samples ANOVA.

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In a 2 2 design with 40 participants equally distributed across the conditions,what are In a 2 <font face= symbol ></font> 2 design with 40 participants equally distributed across the conditions,what are and A) = 1; = 10 B) = 1; = 40 C) = 2; = 10 D) = 2; = 20 and In a 2 <font face= symbol ></font> 2 design with 40 participants equally distributed across the conditions,what are and A) = 1; = 10 B) = 1; = 40 C) = 2; = 10 D) = 2; = 20


A) In a 2 <font face= symbol ></font> 2 design with 40 participants equally distributed across the conditions,what are and A) = 1; = 10 B) = 1; = 40 C) = 2; = 10 D) = 2; = 20 = 1; In a 2 <font face= symbol ></font> 2 design with 40 participants equally distributed across the conditions,what are and A) = 1; = 10 B) = 1; = 40 C) = 2; = 10 D) = 2; = 20 = 10
B) In a 2 <font face= symbol ></font> 2 design with 40 participants equally distributed across the conditions,what are and A) = 1; = 10 B) = 1; = 40 C) = 2; = 10 D) = 2; = 20 = 1; In a 2 <font face= symbol ></font> 2 design with 40 participants equally distributed across the conditions,what are and A) = 1; = 10 B) = 1; = 40 C) = 2; = 10 D) = 2; = 20 = 40
C) In a 2 <font face= symbol ></font> 2 design with 40 participants equally distributed across the conditions,what are and A) = 1; = 10 B) = 1; = 40 C) = 2; = 10 D) = 2; = 20 = 2; In a 2 <font face= symbol ></font> 2 design with 40 participants equally distributed across the conditions,what are and A) = 1; = 10 B) = 1; = 40 C) = 2; = 10 D) = 2; = 20 = 10
D) In a 2 <font face= symbol ></font> 2 design with 40 participants equally distributed across the conditions,what are and A) = 1; = 10 B) = 1; = 40 C) = 2; = 10 D) = 2; = 20 = 2; In a 2 <font face= symbol ></font> 2 design with 40 participants equally distributed across the conditions,what are and A) = 1; = 10 B) = 1; = 40 C) = 2; = 10 D) = 2; = 20 = 20

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How many participants would be required for a completely randomized 4 5 between-subjects design with three observations per cell?


A) 18
B) 20
C) 27
D) 60

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D

For which of the three F-tests in a two-way ANOVA do you collapse across the levels of the other factor(s) in computing the means?


A) The A main effect
B) The B main effect
C) The interaction effect
D) Both the A main effect and the B main effect

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In a two-way ANOVA,an F involving a comparison among the level means of a factor is referred to as a test for the significance of


A) a main effect.
B) the interaction effect.
C) a factorial design.
D) a level effect.

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Sharon has conducted a study on the effectiveness of a drug for obsessive-compulsive disorder (OCD) .Her drug levels are 0 mg. ,100 mg. ,and 500 mg.She also has included a second factor of therapy versus no therapy.Sharon already has computed the total of the scores in each treatment.These are given below,along with the sum of the scores for every measurement in the study ( Sharon has conducted a study on the effectiveness of a drug for obsessive-compulsive disorder (OCD) .Her drug levels are 0 mg. ,100 mg. ,and 500 mg.She also has included a second factor of therapy versus no therapy.Sharon already has computed the total of the scores in each treatment.These are given below,along with the sum of the scores for every measurement in the study ( ) .Sharon had 10 participants in each treatment condition.What is her (therapy level) ? A) 7.25 B) 34.64 C) 45.60 D) 87.01 ) .Sharon had 10 participants in each treatment condition.What is her Sharon has conducted a study on the effectiveness of a drug for obsessive-compulsive disorder (OCD) .Her drug levels are 0 mg. ,100 mg. ,and 500 mg.She also has included a second factor of therapy versus no therapy.Sharon already has computed the total of the scores in each treatment.These are given below,along with the sum of the scores for every measurement in the study ( ) .Sharon had 10 participants in each treatment condition.What is her (therapy level) ? A) 7.25 B) 34.64 C) 45.60 D) 87.01 (therapy level) ? Sharon has conducted a study on the effectiveness of a drug for obsessive-compulsive disorder (OCD) .Her drug levels are 0 mg. ,100 mg. ,and 500 mg.She also has included a second factor of therapy versus no therapy.Sharon already has computed the total of the scores in each treatment.These are given below,along with the sum of the scores for every measurement in the study ( ) .Sharon had 10 participants in each treatment condition.What is her (therapy level) ? A) 7.25 B) 34.64 C) 45.60 D) 87.01


A) 7.25
B) 34.64
C) 45.60
D) 87.01

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A major reason for conducting a study with two factors is to


A) observe the interaction between the factors.
B) observe the main effects simultaneously.
C) conserve time and energy.
D) obtain more samples than can easily be obtained with one factor.

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An unconfounded comparison occurs in comparing two cell means when


A) there are unequal ns in the cells.
B) the two cells differ along one factor.
C) the two cells differ along more than one factor.
D) there are unequal ns in the factors.

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If If for a factor is 0.09, A) the importance of the factor should be emphasized in the interpretation of the overall experiment. B) the importance of the factor should not be emphasized in the interpretation of the overall experiment. C) the factor accounts for 90% of the variance in scores. D) the factor accounts for 9% of the variance in scores. for a factor is 0.09,


A) the importance of the factor should be emphasized in the interpretation of the overall experiment.
B) the importance of the factor should not be emphasized in the interpretation of the overall experiment.
C) the factor accounts for 90% of the variance in scores.
D) the factor accounts for 9% of the variance in scores.

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If you are interested in how well students perform on a standardized math achievement test after they have completed a six-week math unit in either a computer-assisted class,a videotaped course,or a regular classroom,what kind of design do you have?


A) A 3 3 between-subjects,factorial design
B) A 2 2 between-subjects,factorial design
C) A 3 3 between-subjects,incomplete factorial design
D) A one-way design

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In a two-way ANOVA,an F involving a comparison among the means of the cells is referred to as a test for the significance of


A) a main effect.
B) the interaction effect.
C) a factorial design.
D) a level effect.

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In a 4 2 design with 80 participants distributed equally across the conditions,what are In a 4 <font face= symbol ></font> 2 design with 80 participants distributed equally across the conditions,what are and ? A) = 4; = 20 B) = 6; = 10 C) = 8; = 10 D) = 8; = 80 and In a 4 <font face= symbol ></font> 2 design with 80 participants distributed equally across the conditions,what are and ? A) = 4; = 20 B) = 6; = 10 C) = 8; = 10 D) = 8; = 80 ?


A) In a 4 <font face= symbol ></font> 2 design with 80 participants distributed equally across the conditions,what are and ? A) = 4; = 20 B) = 6; = 10 C) = 8; = 10 D) = 8; = 80 = 4; In a 4 <font face= symbol ></font> 2 design with 80 participants distributed equally across the conditions,what are and ? A) = 4; = 20 B) = 6; = 10 C) = 8; = 10 D) = 8; = 80 = 20
B) In a 4 <font face= symbol ></font> 2 design with 80 participants distributed equally across the conditions,what are and ? A) = 4; = 20 B) = 6; = 10 C) = 8; = 10 D) = 8; = 80 = 6; In a 4 <font face= symbol ></font> 2 design with 80 participants distributed equally across the conditions,what are and ? A) = 4; = 20 B) = 6; = 10 C) = 8; = 10 D) = 8; = 80 = 10
C) In a 4 <font face= symbol ></font> 2 design with 80 participants distributed equally across the conditions,what are and ? A) = 4; = 20 B) = 6; = 10 C) = 8; = 10 D) = 8; = 80 = 8; In a 4 <font face= symbol ></font> 2 design with 80 participants distributed equally across the conditions,what are and ? A) = 4; = 20 B) = 6; = 10 C) = 8; = 10 D) = 8; = 80 = 10
D) In a 4 <font face= symbol ></font> 2 design with 80 participants distributed equally across the conditions,what are and ? A) = 4; = 20 B) = 6; = 10 C) = 8; = 10 D) = 8; = 80 = 8; In a 4 <font face= symbol ></font> 2 design with 80 participants distributed equally across the conditions,what are and ? A) = 4; = 20 B) = 6; = 10 C) = 8; = 10 D) = 8; = 80 = 80

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A significant interaction effect indicates that


A) the influence of one factor is not the same for each level of the other factor.
B) the influence of one factor is the same for each level of the other factor.
C) the relationship between one factor and the dependent variable differs from the relationship between the other factor and the dependent variable.
D) the dependent variable differs depending on the level of a factor.

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A

In a two-way ANOVA,the hypotheses for a Factor B that has four levels are


A) In a two-way ANOVA,the hypotheses for a Factor B that has four levels are A) not all are equal. B) not all are equal. C) D) not all In a two-way ANOVA,the hypotheses for a Factor B that has four levels are A) not all are equal. B) not all are equal. C) D) are equal.
B) In a two-way ANOVA,the hypotheses for a Factor B that has four levels are A) not all are equal. B) not all are equal. C) D) not all In a two-way ANOVA,the hypotheses for a Factor B that has four levels are A) not all are equal. B) not all are equal. C) D) are equal.
C) In a two-way ANOVA,the hypotheses for a Factor B that has four levels are A) not all are equal. B) not all are equal. C) D) In a two-way ANOVA,the hypotheses for a Factor B that has four levels are A) not all are equal. B) not all are equal. C) D)
D) In a two-way ANOVA,the hypotheses for a Factor B that has four levels are A) not all are equal. B) not all are equal. C) D)

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An interaction effect that is not significant indicates that


A) the influence of one factor is not the same for each level of the other factor.
B) the influence of one factor is the same for each level of the other factor.
C) the relationship between one factor and the dependent variable differs from the relationship between the other factor and the dependent variable.
D) the dependent variable differs depending on the level of a factor.

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For the following mean square from an ANOVA summary table,what are the correct For the following mean square from an ANOVA summary table,what are the correct values? A) a B) b C) c D) d values? For the following mean square from an ANOVA summary table,what are the correct values? A) a B) b C) c D) d


A) a
B) b
C) c
D) d

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A two-way ANOVA contains


A) a main effect for each factor.
B) a main effect for each factor and an interaction.
C) an interaction for each factor and a main effect.
D) an interaction for each factor.

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B

In a two-way ANOVA,a cell represents


A) one level of the independent variable called Factor A and one level of the independent variable called Factor B.
B) one level of the dependent variable.
C) one level of the independent variable called Factor A.
D) all the subjects in the experiment.

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When graphed,a significant interaction effect produces two or more lines that


A) slant upward from left to right.
B) slant downward from left to right.
C) are not parallel.
D) have either U shapes or inverted U shapes.

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