Chap 01_5e
Indicate whether the statement is true or false.
1. Preregistration is a technique that is now discouraged by proponents of open science.
a. True
b. False
2. Discrete observations can typically take on more values than continuous observations.
a. True
b. False
3. In a between-groups research design, a participant experiences one and only one of the levels of the
independent variable.
a. True
b. False
4. In a within-groups research design, a participant experiences more than one of the levels of the dependent
variable.
a. True
b. False
5. By definition a population is smaller than its respective sample.
a. True
b. False
6. A test that has low reliability cannot have good validity.
a. True
b. False
7. In a between-groups research design, a participant experiences one and only one of the levels of the
dependent variable.
a. True
b. False
8. Square footage, such as that used to describe home size, is a ratio variable.
a. True
b. False
9. Mattress size, including twin, full, queen, king, and California king, is an ordinal variable.
a. True
b. False
Page 1
,Name: Class: Date:
Chap 01_5e
10. Square footage, such as that used to describe home size, is an interval variable.
a. True
b. False
11. In a within-groups research design, a participant experiences more than one of the levels of the independent
variable.
a. True
b. False
12. In a between-groups research design, a participant experiences more than one of the levels of the dependent
variable.
a. True
b. False
13. In a between-groups research design, a participant experiences more than one of the levels of the
independent variable.
a. True
b. False
14. Open science is an approach to research that encourages researchers to work together and share
methodology, data, and statistical analyses in order to allow for replication of their findings.
a. True
b. False
15. Continuous observations can typically take on more values than discrete observations.
a. True
b. False
16. A major electronics store calculates holiday spending for both its store-based sales (2.3 million) and online
sales (1.4 million). These are both descriptive statistics.
a. True
b. False
17. A test that has poor validity cannot have good reliability.
a. True
b. False
18. Mattress size, including twin, full, queen, king, and California king, is a nominal variable.
a. True
b. False
Copyright Macmillan Learning. Powered by Cognero. Page 2
, Name: Class: Date:
Chap 01_5e
19. Confounding variables are connected to the dependent variable such that we cannot know which variable
causes the effect we observe.
a. True
b. False
20. By definition a sample is smaller than its respective population.
a. True
b. False
21. Confounding variables are connected to the independent variable such that we cannot know which variable
causes the effect we observe.
a. True
b. False
22. In a within-groups research design, a participant experiences only one of the levels of the dependent variable.
a. True
b. False
23. In a within-groups research design, a participant experiences only one of the levels of the independent
variable.
a. True
b. False
24. Inferential statistics summarize a group, while descriptive statistics help us make estimates about a larger
population.
a. True
b. False
25. If a test is valid, then we know that it is reliable.
a. True
b. False
26. Descriptive statistics summarize a group, while inferential statistics help us make estimates about a larger
population.
a. True
b. False
Copyright Macmillan Learning. Powered by Cognero. Page 3