Question 1

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?

Accepted Answer

A)  interaction effect
B)  factor effect
C)  level effect
D)  main effect D

Question 2

ANOVA with replication is also known as _______.

Accepted Answer

A)  repeated measures
B)  between-group design
C)  mixed design
D)  one-way ANOVA A

Question 3

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) _______.

Accepted Answer

A)  analysis of covariance
B)  analysis of variance
C)  factorial analysis of variance
D)  repeated-measures analysis of variance C

Question 4

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?

Accepted Answer

A)  2 × 2 ANOVA
B)  3 × 2 ANOVA
C)  3 × 2 × 1 ANOVA
D)  3 × 3 ANOVA

Question 5

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?

Accepted Answer

The answer of Dr.Moo conducted a research project in which...

Question 6

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

Accepted Answer

A)  H₁: µᵤppₑᵣ × nₑw = µᵤppₑᵣ × ᵣₑtᵤᵣnᵢng = µmᵢddlₑ × nₑw = µmᵢddlₑ × ᵣₑtᵤᵣnᵢng
B)  H₀: µᵤppₑᵣ × nₑw ≠ µᵤppₑᵣ × ᵣₑtᵤᵣnᵢng ≠ µmᵢddlₑ × nₑw ≠ µmᵢddlₑ × ᵣₑtᵤᵣnᵢng
C)  H₁: ᵤppₑᵣ × nₑw = ᵤppₑᵣ × ᵣₑtᵤᵣnᵢng = mᵢddlₑ × nₑw = mᵢddlₑ × ᵣₑtᵤᵣnᵢng
D)  H₁: ᵤppₑᵣ × nₑw ≠ ᵤppₑᵣ × ᵣₑtᵤᵣnᵢng ≠ mᵢddlₑ × nₑw ≠ mᵢddlₑ × ᵣₑtᵤᵣnᵢng

Question 7

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?

Accepted Answer

A)  one-way ANOVA
B)  2 × 2 ANOVA
C)  multivariate ANOVA
D)  3 × 2 ANOVA

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

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

Accepted Answer

A)  two independent
B)  two dependent
C)  one independent
D)  three dependent

Question 10

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?

Accepted Answer

A)  interaction effect
B)  factor effect
C)  level effect
D)  main effect

Question 11

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? $$\begin{array} { | l | l | l | l | l | l | } 
\hline \text { Source } & \text { Surns of Squares } & \text { df } & \text { Mear square } & F & \text { Significance } \
\hline \text { Therapy } & \mathbf { 2 6 5 . 2 2 5 } & 1 & 265.225 & 2.444 & .127 \
\hline \text { Gender } & \mathbf { 2 0 7 . 0 2 5 } & 1 & 207.205 & 1.908 & 176 \
\hline \text { Therapy } \times \text { Gender } & 1,050.625 & 1 & 1,050.625 & 9.683 & .004 \
\hline \text { Error } & \mathbf { 3 , 9 0 6 . 1 0 0 } & \mathbf { 3 6 } & 108.503 & & \
\hline \text { Total } & \mathbf { 2 2 4 , 3 2 1 . 0 0 0 } & \mathbf { 3 9 } & & & \
\hline
\end{array}$$

Accepted Answer

A)  There is a main effect of therapy.
B)  There is a main effect of gender.
C)  There is an interaction effect.
D)  There is no interaction effect.

Question 12

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?

Accepted Answer

A)  grade level
B)  students' attitudes
C)  parents' attitudes
D)  level of parent involvement

Question 13

In the factorial ANOVA, participants are tested _______.

Accepted Answer

A)  only once
B)  exactly twice
C)  once or more
D)  twice or more

Question 14

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

Accepted Answer

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

Question 15

The factorial ANOVA can be used to test ______.

Accepted Answer

A)  main effects and interaction effects of the independent variables
B)  main effects and interaction effects of the dependent variable
C)  main effects of the independent variables only
D)  main effects of the dependent variable only

Question 16

In what condition do you use the factorial ANOVA?

Accepted Answer

A)  when you have one independent variable
B)  when you have more than one independent variable
C)  when you have two dependent variables
D)  when you have two or more dependent variables

Question 17

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

Accepted Answer

A)  a main effect
B)  an interaction effect
C)  both a main effect and an interaction effect
D)  neither a main effect nor an interaction effect

Question 18

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

Accepted Answer

A)  The obtained value
B)  The critical value
C)  The correlation
D)  The level of significance

Question 19

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?

Accepted Answer

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

Question 20

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

Accepted Answer

A)  The other main effect must be significant.
B)  The interaction effect must be significant.
C)  The interaction effect must not be significant.
D)  The other main effect and the interaction effect may or may not be significant.

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