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Exam 14: Two Too Many Factors: Factorial Analysis of Variancea Brief Introduction

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Question 1

Multiple Choice

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How many null hypotheses are associated with a two-way ANOVA?

A) one
B) two
C) three
D) four

E) A) and B)
F) A) and D)

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Question 2

Multiple Choice

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If you wanted to examine whether television viewing through social learning differs based on students' grade in school (i.e., first, second, third, etc.) , what is the dependent variable of interest?

A) grade level
B) television viewing
C) students
D) school

E) A) and C)
F) All of the above

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Question 3

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In a factorial ANOVA, the research hypothesis for the interaction might look like this:

Which of the following would be an example of a design that examines the effects of gender and SES (high SES and low SES) on a test of student achievement?

Dr.Moo conducted a research project in which she compared the impact of two types of therapy (pizza therapy and chocolate therapy) and gender on college students' happiness.Which of the following can be confirmed by the table below? $\begin{array} { | l | l | l | l | l | l | } \hline \text { Source } & \text { Surns of Squares } & \text { df } & \text { Mear square } & F & \text { Significance } \\\hline \text { Therapy } & \mathbf { 2 6 5 . 2 2 5 } & 1 & 265.225 & 2.444 & .127 \\\hline \text { Gender } & \mathbf { 2 0 7 . 0 2 5 } & 1 & 207.205 & 1.908 & 176 \\\hline \text { Therapy } \times \text { Gender } & 1,050.625 & 1 & 1,050.625 & 9.683 & .004 \\\hline \text { Error } & \mathbf { 3 , 9 0 6 . 1 0 0 } & \mathbf { 3 6 } & 108.503 & & \\\hline \text { Total } & \mathbf { 2 2 4 , 3 2 1 . 0 0 0 } & \mathbf { 3 9 } & & & \\\hline\end{array}$

In the main effect F₍₁,₉₎ = 1.67, p = .229, what is .229?

What type of ANOVA would examine effects of political party (i.e., Democrat, Republican, or independent) affiliation and gender on attitudes toward the death penalty?

A researcher wants to create an intervention to improve the well-being of graduate students in a counseling program, so she gives one group of students specific doses of rocky road ice cream, the second group of students specific doses of licorice, and the third group of students specific doses of chewy fruit-flavored candies for their treatments.As a second factor, she includes students in their first semester of their first year of graduate school as one cohort and students in the first semester of their second year of graduate school as the other cohort.To analyze the differences in well-being between the students in the three different "treatments" and two cohorts, she would use a(n) _______.

The factorial ANOVA can be used to test ______.

In what condition do you use the factorial ANOVA?

If your analysis notes that participants in a weight loss study differ in amount of weight lost based on the type of weight loss program used, what type of effect is this called?

You would want to use a factorial ANOVA if you had _______ variables.

If your analysis notes that participants in a weight loss study differ in amount of weight lost based on their gender, what type of effect is this called?

If you have two main effects, and one main effect is significant, this means that ______.

ANOVA with replication is also known as _______.

The source table lists sources of variance in an analysis of variance.

In the factorial ANOVA, participants are tested _______.

If you find that income significantly varies on the basis of gender, you have ______.

If you wanted to examine whether the attitudes toward learning differs based on students' grade in school (i.e., first, second, third, etc.) , what is the independent variable of interest?

Dr.Moo conducted a research project in which she compared the impact of two types of therapy (pizza therapy and chocolate therapy) and gender on college students' happiness.How many research hypotheses did she have, and how would you write them?