Chapter 12: Mixed Design

Question 1

Which factorial design has AT LEAST 1 within-subjects design and AT LEAST 1 between-subjects design?

Answer 1

mixed design

Question 2

In which factorial design do participants receive every level of the within-subjects IV, but only 1 level of the between-subjects IV?

Answer 2

mixed design

Question 3

T or F: between-subjects design is more powerful, and more likely to find a significant result

Answer 3

FALSE; within-subjects design is more powerful, and more likely to find a significant result

Question 4

What is a single-subject design?

Answer 4

a special type of within-subjects deign using 1 participant or a single group to assess changes within that individual or group

Question 5

In a single-subject design, which factor serves as its own control?

Answer 5

the participant

Question 6

What occurs in an A-B design?

Answer 6

A) the researcher takes a baseline measurement, then introduces the intervention, and measures the same variable again (B)

Question 7

What does the second “A” in an A-B-A design mean?

Answer 7

the researcher removes the intervention, and takes another measurement is taken

Question 8

What does an A-B-A design help you establish?

Answer 8

covariation by showing that behavior changes as researchers introduce and remove a treatment

Question 9

What does an A-B designestablish?

Answer 9

a cause-and-effect relationship

Question 10

What design provides even more proof of causality, but can be problematic and unethical?

Answer 10

A-B-A-B design

Question 11

What does the last “B” stand for in an A-B-A-B design?

Answer 11

the treatment (intervention) is reintroduced)

Question 12

How do you calculate the marginal mean?

Answer 12

by pooling the averages of all of the levels of 1 variavle

Question 13

The marginal mean tests if there is a(n) ______

Answer 13

main effect

Question 14

In a marginal mean, you have to complete a(n) _______ to see if the difference is significant or not

Answer 14

analysis

Question 15

What does it mean if there is an additive?

Answer 15

There is NO interaction, because the difference between the 2 groups is same throughout

Question 16

When we have 1 IV, do we use:

a) Eta^2
b) partial Eta^2

Answer 16

a) Eta^2

Question 17

When we have 2 or more IVs, do we use:

a) Eta^2
b) partial Eta^2

Answer 17

b) partial Eta^2

Question 18

What is the name for the group that receives an already-established treatment throughout the study:

Answer 18

treatment-as-usual group

Question 19

The ______________ group can be compared to the experimental intervention group to determine if the experimental treatment is more effective than the established one

Answer 19

treatment-as-usual group

Question 20

Participants in a ___________ group do not receive treatment or intervention until AFTER the completion of the study

Answer 20

waiting-list control group

Question 21

In a ______ group, participants do not receive treatment or intervention until after the completion of the study

a) placebo control
b) treatment-as-usual
c) straight control
d) waiting-list control

Answer 21

d) waiting-list control

Question 22

What is a double blind procedure?

Answer 22

when both the participants and treatment administratorss are unaware of the types of treatments that the participants are given

Question 23

What is the experimenter-expectancy effect (aka experimenter bias)

Answer 23

when a bias causes a researcher to unconsciously influence the participants of an experiment

Question 24

An experiment investigating how pet-co sleeping and mindfulness affects stress levels involves how many factors?

a) 2
b) 3
c) 4
d) 6

Answer 24

a) 2

Question 25

An experimenter that combines within-subjects and between-subjects methods of data collection is termed a(n) _____ design a) interactive b) factorial c) mixed d) A-B-A-B

Answer 25

c) mixed

Question 26

A single-subject design makes the most sense to use when: a) cause and effect is NOT a goal of the research b) the population from which the sample is to be taken is small c) more than one independent variable is to be studied d) external validity is a primary goal of the research

Answer 26

b) the population from which the sample is to be taken is small

Question 27

How many times is the treatment presented in an A-B-A-B-A design? a) once b) twice c) three times d) four times

Answer 27

b) twice

Question 28

In a single-blind experimental design, who is blind to the treatment being provided? a) the participants in all conditions of the experiement b) the administrator of the treatment c) the participants and the administrator of the treatment d) the experimenter analyzing the data

Answer 28

a) the participants in all conditions of the experiement

Question 29

Devising new measures of a dependent variable is: a) expected, so that one avoids duplicating previous research b) prioritized, as this is how science advances c) discourages, because there is little role for creativity in science d) a last resort, because existing measures have been validated

Answer 29

d) a last resort, because existing measures have been validated

Question 30

In a factorial ANOVA, the term eta^2 = .225 measures the: a) probability of obtaining the result by chance b) main effect c) interaction d) effect size

Answer 30

d) effect size

Question 31

When conducting a 2x3 factorial design, there are _____ possible main effect(s) and _____ possible interaction(s) a) two; one b) two; three c) one; three d) three; six

Answer 31

a) two; one