Chapter Twelve: Mixed Design

Question 1

A-B Design

Answer 1

A single-subject design in which researchers take a baseline measurement (A), then introduce the intervention, and then measure the same variable again (B)

Question 2

A-B-A Design

Answer 2

A single-subject design in which researchers establish a baseline (A), introduce the intervention and measure the same variable again (B), then remove the intervention and take another measurement (A)

Question 3

A-B-A-B Design

Answer 3

A single-subject design in which researchers establish a baseline (A), introduce the intervention (B), remove the intervention (A), and then reintroduce the intervention (B), measuring the dependent variable each time

Question 4

Double-Blind Procedure

Answer 4

Both the participants and the administrators of treatment are unaware of, or blind to, the types of treatment being provided in order to reduce the likelihood that expectancies or knowledge of condition will influence the results

Question 5

Experimenter-Expectancy Effect

Answer 5

Occurs when a bias causes a researcher to unconsciously influence the participants of an experiment; also known as expectancy bias or experimenter effect

Question 6

Mixed Design

Answer 6

An experimental design that combines within-subjects and between-subjects methods of data collection

Question 7

Mixed Design of Analysis of Variance (Mixed Design ANOVA)

Answer 7

A statistical analysis that tests for differences between two or more categorical independent variables, where at least one is a between-subjects variable and another is a within-subjects variable

Question 8

Single-Blind Procedure

Answer 8

Participants are unaware of, or blind to, the types of treatment they are receiving, but the administer knows

Question 9

Single-Subject Design

Answer 9

A special type of within-subjects design using one participant (human or animal) or one group to assess changes within that individual or group; also known as single-case experimental design or a single-n design

Question 10

Treatment-As-Usual Group

Answer 10

A comparison group often used in clinical research in which an already established treatment is administered for comparison to experimental treatment

Question 11

Waiting-List Control Group

Answer 11

A control group often used in clinical research; participants in this group do not receive treatment or intervention until after the completion of the study