Chapter.5 Experimental Design Exam Questions

Chapter 5: Experimental design

Test Bank

Type: multiple choice question

Title: Chapter 5 Question 1

1) What is the main goal of an experimental design?

a. To assess relationships between naturally occurring variables

b. To make observations of behaviour in a natural or laboratory setting without manipulating anything

c. To compare two or more pre-existing groups of people

d. To examine differences between conditions

Type: multiple choice question

Title: Chapter 5 Question 2

2) Which of the following statements is correct?

a. In an experimental study, a dependent variable must be categorical, and an independent variable must be continuous.

b. In an experimental study, an independent variable must be ordinal, and a dependent variable must be ratio data.

c. In an experimental study, an independent variable must be categorical, and a dependent variable must be continuous.

d. In an experimental study, an independent variable must be interval data, and a dependent variable must be continuous.

Type: multiple choice question

Title: Chapter 5 Question 3

3) What is the difference between experimental and quasi-experimental research?

a. In an experimental study, participants are randomly assigned to conditions, whereas they are not assigned randomly in a quasi-experimental study.

b. In a quasi-experimental study, participants are randomly assigned to conditions, whereas they are not assigned randomly in an experimental study.

c. There is no difference between them.

d. A quasi-experimental study uses a repeated measures design, whereas an experimental study uses an independent measures design design.

Type: multiple choice question

Title: Chapter 5 Question 4

4) What is familywise error?

a. The approximate standard deviation of a statistical sample population

b. The amount of variation or dispersion of a set of values

c. The error of rejecting a null hypothesis when it is true

d. The probability of making one or more false discoveries when performing multiple hypotheses tests

Type: multiple choice question

Title: Chapter 5 Question 5

5) Which of the following tests is not a factorial design?

a. A two-way independent measures ANOVA

b. One-way independent measures ANOVA

c. A three-way independent measures ANOVA

d. A two-way repeated measures ANOVA

Type: multiple choice question

Title: Chapter 5 Question 6

6) When should you have a two-tailed hypothesis?

a. When your data is not normally distributed

b. When the previous research findings are inconsistent

c. When the previous findings are consistent

d. When you have a directional prediction

Type: multiple choice question

Title: Chapter 5 Question 7

7) What are the assumptions of parametric statistical analyses?

a. The normal distribution, homogeneity of variance, and independence of observations

b. The normal distribution and homogeneity of variance

c. The normal distribution, homogeneity of variance, independence of observations, and interval or ratio data

d. The normal distribution and interval or ratio data

Type: multiple choice question

Title: Chapter 5 Question 8

8) Which of the following options is not one of the approaches to deal with confounding variables?

a. Test-retest approach

b. Randomly allocate participants.

c. Use a matched participants design.

d. Run an analysis of covariance (ANCOVA).

Type: multiple choice question

Title: Chapter 5 Question 9

9) Which types of validity and reliability are particularly important for experimental studies?

a. External validity and inter-rater reliability

b. Internal validity and internal consistency

c. Internal validity and test-retest reliability

d. Ecological validity and test-retest reliability

Type: multiple choice question

Title: Chapter 5 Question 10

10) Which of the following options is not an ethical responsibility of a researcher?

a. Gain informed consent from participants.

b. Fully inform participants about the aims and hypotheses of the study before they take part.

c. Protect participants from risks to physical and/or psychological harm or distress.

d. Assure the confidentiality of information.