TEST BANK FOR b b
Essentials Of Statistics For The Behavioral Sciences 10th Edition Frederick J Gravetter, Larry
b b b b b b b b b b b b
B. Wallnau, Lori Ann B. Forzano, James E. Witnauer
b b b b b b b b b
Chapter 01 b
1. A researcher uses an anonymous survey to investigate the television-viewing habits of 100 American adolescents. The
b b b b b b b b b b b b b b b
researcher plans to make an inference about the television-viewing habits of all American adolescents based on the
b b b b b b b b b b b b b b b b b
results of the survey. The entire group of American adolescents is an example of a .
b b b b b b b b b b b b b b b b
a. sample
b. statistic
c. population
d. parameter
ANSWER: c
DIFFICULTY: Apply
REFERENCES: 1.1 Statistics, Science, and Observations
b b b b
KEYWORDS: Bloom’s: Apply b
2. A researcher uses an anonymous survey to investigate the social media habits of American college students. Based on
b b b b b b b b b b b b b b b b b
the set of 300 surveys that were completed and returned, the researcher finds that students spend an average of 2 hours
b b b b b b b b b b b b b b b b b b b b b
each day using social media. The set of 300 students who returned surveys is an example of a
b b b b b . b b b b b b b b b b b b b b
a. parameter
b. statistic
c. population
d. sample
ANSWER: d
DIFFICULTY: Apply
REFERENCES: 1.1 Statistics, Science, and Observations
b b b b
KEYWORDS: Bloom’s: Apply b
3. In order for a researcher to obtain a random sample, they need to specifically do which of the following things?
b b b b b b b b b b b b b b b b b b b
a. rule out confounding variables
b b b
b. ensure that each person in the population has an equal chance of being selected for the sample
b b b b b b b b b b b b b b b b
c. make certain that results are valid
b b b b b
d. make sure that each participant has an equal chance of being assigned to each experimental condition
b b b b b b b b b b b b b b b
ANSWER: b
DIFFICULTY: Understand
REFERENCES: 1.1 Statistics, Science, and Observations b b b b
KEYWORDS: Bloom’s: Understand b
4. In contrast to a datum, which of the following descriptions is most consistent with the concept of data?
b b b b b b b b b b b b b b b b b
a. the mean average of 15 participants’ individual scores on a problem-solving task
b b b b b b b b b b b
b. the percentile that the score of 1 participant on a problem-solving task falls into
b b b b b b b b b b b b b
Copyright bCengage bLearning. bPowered bby Page b1
Cognero.
, c. the individual scores of 15 participants on a problem-solving task
b b b b b b b b b
d. the individual score of 1 participant on a problem-solving task
b b b b b b b b b
ANSWER: c
DIFFICULTY: Analyze
REFERENCES: 1.1 Statistics, Science, and Observations b b b b
KEYWORDS: Bloom’s: Analyze b
5. A researcher is curious about the average monthly car insurance bill for high school students in the state of Florida. If
b b b b b b b b b b b b b b b b b b b b
this average could be obtained, it would be an example of a
b b b b b b b b b b b b b .
a. parameter
b. statistic
c. population
d. sample
ANSWER: a
DIFFICULTY: Apply
REFERENCES: 1.1 Statistics, Science, and Observations
b b b b
KEYWORDS: Bloom’s: Apply b
6. Which statement below regarding populations is true?
b b b b b b
a. Populations typically are small in size. b b b b b
b. Populations cannot consist of non-human animal research subjects.
b b b b b b b
c. The experimental research method should be used to examine populations.
b b b b b b b b b
d. It usually is challenging to obtain data from every person in a population.
b b b b b b b b b b b b
ANSWER: d
DIFFICULTY: Understand
REFERENCES: 1.1 Statistics, Science, and Observations b b b b
KEYWORDS: Bloom’s: Understand b
7. The relationship between a statistic and a sample is the same as the relationship between
b b b b b b b b b b b b b b b .
a. a sample and a population
b b b b
b. a statistic and a parameter
b b b b
c. a parameter and a population
b b b b
d. descriptive and inferential statistics b b b
ANSWER: c
DIFFICULTY: Understand
REFERENCES: 1.1 Statistics, Science, and Observations b b b b
KEYWORDS: Bloom’s: Understand b
8. Organizing a set of scores in a table or computing an average to summarize a data set is an example of using
b b b b b b b b b b b b b b b b b b b b b b .
a. parameters
b. random sampling b
c. descriptive statistics b
d. inferential statistics b
Copyright bCengage bLearning. bPowered bby Page b2
Cognero.
,ANSWER: c
DIFFICULTY: Remember
REFERENCES: 1.1 Statistics, Science, and Observations
b b b b
KEYWORDS: Bloom’s: Remember b
9. A characteristic, usually a numerical value, which describes a sample is called a
b b b b b b b b b b b b b .
a. parameter
b. statistic
c. variable
d. constant
ANSWER: b
DIFFICULTY: Remember
REFERENCES: 1.1 Statistics, Science, and Observations b b b b
KEYWORDS: Bloom’s: Remember b
10. A researcher is interested in average first semester change in weight (gain or loss) for students at a local college. Thus,
b b b b b b b b b b b b b b b b b b b b
they record the individual change in weight for a small group of 25 freshman from this college during their first
b b b b b b b b b b b b b b b b b b b b
semester. Then, the researcher calculates the average change in weight during the first semester among these 25 students.
b b b b b b b b b b b b b b b b b b
The average is an example of a .
b b b b b b b b
a. statistic
b. parameter
c. variable
d. constant
ANSWER: a
DIFFICULTY: Apply
REFERENCES: 1.1 Statistics, Science, and Observations
b b b b
KEYWORDS: Bloom’s: Apply b
11. The average verbal SAT score for the entire class of incoming college freshmen in the United States is 530. However,
b b b b b b b b b b b b b b b b b b b
if a sample of 20 incoming college freshmen is randomly selected from the United States, it is likely that this sample’s
b b b b b b b b b b b b b b b b b b b b b
average verbal SAT score will not be exactly 530. This is consistent with the concept of
b b b b b . b b b b b b b b b b b b
a. statistical error b
b. inferential error b
c. sampling error b
d. descriptive error b
ANSWER: c
DIFFICULTY: Apply
REFERENCES: 1.1 Statistics, Science, and Observations b b b b
KEYWORDS: Bloom’s: Apply b
12. Random assignment helps to strengthen causal inferences within an experiment by ruling out potential confounding
b b b b b b b b b b b b b b
b variables otherwise introduced to an experiment due to individual differences in participants.
b b b b b b b b b b b
a. True
b. False
Copyright bCengage bLearning. bPowered bby Page b3
Cognero.
, ANSWER: True
DIFFICULTY: Understand
REFERENCES: 1.3 Three Data Structures, Research Methods, and Statistics
b b b b b b b
KEYWORDS: Bloom’s: Understand b
13. A recent study reported that students who just finished playing a prosocial video game were more likely to help others
b b b b b b b b b b b b b b b b b b b
than students who had just finishing playing a neutral or antisocial game. For this study, the kind of game given to the
b b b b b b b b b b b b b b b b b b b b b b
students was the
b b . b b
a. control group b
b. quasi-independent variable b
c. independent variable b
d. dependent variable b
ANSWER: c
DIFFICULTY: Apply
REFERENCES: 1.3 Three Data Structures, Research Methods, and Statistics b b b b b b b
KEYWORDS: Bloom’s: Apply b
14. Which of the following statements is consistent with a research study conducted with the correlational method?
b b b b b b b b b b b b b b b
a. One variable is measured, and two groups are compared.
b b b b b b b b
b. Two variables are measured, and two groups are compared.
b b b b b b b b
c. One variable is measured, and there is only one group of participants.
b b b b b b b b b b b
d. Two variables are measured, and there is only one group of participants.
b b b b b b b b b b b
ANSWER: d
DIFFICULTY: Understand
REFERENCES: 1.3 Three Data Structures, Research Methods, and Statistics b b b b b b b
KEYWORDS: Bloom’s: Understand b
15. For a research study examining how participant gender influences support for equality in society, participant gender is
b b b b b b b b b b b b b b b b
an example of which kind of variable?
b b b b b b b
a. quasi-independent variable b
b. independent variable b
c. quasi-dependent variable b
d. dependent variable b
ANSWER: a
DIFFICULTY: Apply
REFERENCES: 1.3 Three Data Structures, Research Methods, and Statistics b b b b b b b
KEYWORDS: Bloom’s: Apply b
16. For an experiment comparing the effectiveness of two different teaching methods for improving the social skills of
b b b b b b b b b b b b b b b b
autistic children, the dependent variable would be the
b b b b b b b b b .
a. experimental methodology b
b. autistic children b
c. teaching methods used to teach social skills b b b b b b
d. levels of improvement in social skills among autistic children
b b b b b b b b
Copyright bCengage bLearning. bPowered bby Page b4
Cognero.
Essentials Of Statistics For The Behavioral Sciences 10th Edition Frederick J Gravetter, Larry
b b b b b b b b b b b b
B. Wallnau, Lori Ann B. Forzano, James E. Witnauer
b b b b b b b b b
Chapter 01 b
1. A researcher uses an anonymous survey to investigate the television-viewing habits of 100 American adolescents. The
b b b b b b b b b b b b b b b
researcher plans to make an inference about the television-viewing habits of all American adolescents based on the
b b b b b b b b b b b b b b b b b
results of the survey. The entire group of American adolescents is an example of a .
b b b b b b b b b b b b b b b b
a. sample
b. statistic
c. population
d. parameter
ANSWER: c
DIFFICULTY: Apply
REFERENCES: 1.1 Statistics, Science, and Observations
b b b b
KEYWORDS: Bloom’s: Apply b
2. A researcher uses an anonymous survey to investigate the social media habits of American college students. Based on
b b b b b b b b b b b b b b b b b
the set of 300 surveys that were completed and returned, the researcher finds that students spend an average of 2 hours
b b b b b b b b b b b b b b b b b b b b b
each day using social media. The set of 300 students who returned surveys is an example of a
b b b b b . b b b b b b b b b b b b b b
a. parameter
b. statistic
c. population
d. sample
ANSWER: d
DIFFICULTY: Apply
REFERENCES: 1.1 Statistics, Science, and Observations
b b b b
KEYWORDS: Bloom’s: Apply b
3. In order for a researcher to obtain a random sample, they need to specifically do which of the following things?
b b b b b b b b b b b b b b b b b b b
a. rule out confounding variables
b b b
b. ensure that each person in the population has an equal chance of being selected for the sample
b b b b b b b b b b b b b b b b
c. make certain that results are valid
b b b b b
d. make sure that each participant has an equal chance of being assigned to each experimental condition
b b b b b b b b b b b b b b b
ANSWER: b
DIFFICULTY: Understand
REFERENCES: 1.1 Statistics, Science, and Observations b b b b
KEYWORDS: Bloom’s: Understand b
4. In contrast to a datum, which of the following descriptions is most consistent with the concept of data?
b b b b b b b b b b b b b b b b b
a. the mean average of 15 participants’ individual scores on a problem-solving task
b b b b b b b b b b b
b. the percentile that the score of 1 participant on a problem-solving task falls into
b b b b b b b b b b b b b
Copyright bCengage bLearning. bPowered bby Page b1
Cognero.
, c. the individual scores of 15 participants on a problem-solving task
b b b b b b b b b
d. the individual score of 1 participant on a problem-solving task
b b b b b b b b b
ANSWER: c
DIFFICULTY: Analyze
REFERENCES: 1.1 Statistics, Science, and Observations b b b b
KEYWORDS: Bloom’s: Analyze b
5. A researcher is curious about the average monthly car insurance bill for high school students in the state of Florida. If
b b b b b b b b b b b b b b b b b b b b
this average could be obtained, it would be an example of a
b b b b b b b b b b b b b .
a. parameter
b. statistic
c. population
d. sample
ANSWER: a
DIFFICULTY: Apply
REFERENCES: 1.1 Statistics, Science, and Observations
b b b b
KEYWORDS: Bloom’s: Apply b
6. Which statement below regarding populations is true?
b b b b b b
a. Populations typically are small in size. b b b b b
b. Populations cannot consist of non-human animal research subjects.
b b b b b b b
c. The experimental research method should be used to examine populations.
b b b b b b b b b
d. It usually is challenging to obtain data from every person in a population.
b b b b b b b b b b b b
ANSWER: d
DIFFICULTY: Understand
REFERENCES: 1.1 Statistics, Science, and Observations b b b b
KEYWORDS: Bloom’s: Understand b
7. The relationship between a statistic and a sample is the same as the relationship between
b b b b b b b b b b b b b b b .
a. a sample and a population
b b b b
b. a statistic and a parameter
b b b b
c. a parameter and a population
b b b b
d. descriptive and inferential statistics b b b
ANSWER: c
DIFFICULTY: Understand
REFERENCES: 1.1 Statistics, Science, and Observations b b b b
KEYWORDS: Bloom’s: Understand b
8. Organizing a set of scores in a table or computing an average to summarize a data set is an example of using
b b b b b b b b b b b b b b b b b b b b b b .
a. parameters
b. random sampling b
c. descriptive statistics b
d. inferential statistics b
Copyright bCengage bLearning. bPowered bby Page b2
Cognero.
,ANSWER: c
DIFFICULTY: Remember
REFERENCES: 1.1 Statistics, Science, and Observations
b b b b
KEYWORDS: Bloom’s: Remember b
9. A characteristic, usually a numerical value, which describes a sample is called a
b b b b b b b b b b b b b .
a. parameter
b. statistic
c. variable
d. constant
ANSWER: b
DIFFICULTY: Remember
REFERENCES: 1.1 Statistics, Science, and Observations b b b b
KEYWORDS: Bloom’s: Remember b
10. A researcher is interested in average first semester change in weight (gain or loss) for students at a local college. Thus,
b b b b b b b b b b b b b b b b b b b b
they record the individual change in weight for a small group of 25 freshman from this college during their first
b b b b b b b b b b b b b b b b b b b b
semester. Then, the researcher calculates the average change in weight during the first semester among these 25 students.
b b b b b b b b b b b b b b b b b b
The average is an example of a .
b b b b b b b b
a. statistic
b. parameter
c. variable
d. constant
ANSWER: a
DIFFICULTY: Apply
REFERENCES: 1.1 Statistics, Science, and Observations
b b b b
KEYWORDS: Bloom’s: Apply b
11. The average verbal SAT score for the entire class of incoming college freshmen in the United States is 530. However,
b b b b b b b b b b b b b b b b b b b
if a sample of 20 incoming college freshmen is randomly selected from the United States, it is likely that this sample’s
b b b b b b b b b b b b b b b b b b b b b
average verbal SAT score will not be exactly 530. This is consistent with the concept of
b b b b b . b b b b b b b b b b b b
a. statistical error b
b. inferential error b
c. sampling error b
d. descriptive error b
ANSWER: c
DIFFICULTY: Apply
REFERENCES: 1.1 Statistics, Science, and Observations b b b b
KEYWORDS: Bloom’s: Apply b
12. Random assignment helps to strengthen causal inferences within an experiment by ruling out potential confounding
b b b b b b b b b b b b b b
b variables otherwise introduced to an experiment due to individual differences in participants.
b b b b b b b b b b b
a. True
b. False
Copyright bCengage bLearning. bPowered bby Page b3
Cognero.
, ANSWER: True
DIFFICULTY: Understand
REFERENCES: 1.3 Three Data Structures, Research Methods, and Statistics
b b b b b b b
KEYWORDS: Bloom’s: Understand b
13. A recent study reported that students who just finished playing a prosocial video game were more likely to help others
b b b b b b b b b b b b b b b b b b b
than students who had just finishing playing a neutral or antisocial game. For this study, the kind of game given to the
b b b b b b b b b b b b b b b b b b b b b b
students was the
b b . b b
a. control group b
b. quasi-independent variable b
c. independent variable b
d. dependent variable b
ANSWER: c
DIFFICULTY: Apply
REFERENCES: 1.3 Three Data Structures, Research Methods, and Statistics b b b b b b b
KEYWORDS: Bloom’s: Apply b
14. Which of the following statements is consistent with a research study conducted with the correlational method?
b b b b b b b b b b b b b b b
a. One variable is measured, and two groups are compared.
b b b b b b b b
b. Two variables are measured, and two groups are compared.
b b b b b b b b
c. One variable is measured, and there is only one group of participants.
b b b b b b b b b b b
d. Two variables are measured, and there is only one group of participants.
b b b b b b b b b b b
ANSWER: d
DIFFICULTY: Understand
REFERENCES: 1.3 Three Data Structures, Research Methods, and Statistics b b b b b b b
KEYWORDS: Bloom’s: Understand b
15. For a research study examining how participant gender influences support for equality in society, participant gender is
b b b b b b b b b b b b b b b b
an example of which kind of variable?
b b b b b b b
a. quasi-independent variable b
b. independent variable b
c. quasi-dependent variable b
d. dependent variable b
ANSWER: a
DIFFICULTY: Apply
REFERENCES: 1.3 Three Data Structures, Research Methods, and Statistics b b b b b b b
KEYWORDS: Bloom’s: Apply b
16. For an experiment comparing the effectiveness of two different teaching methods for improving the social skills of
b b b b b b b b b b b b b b b b
autistic children, the dependent variable would be the
b b b b b b b b b .
a. experimental methodology b
b. autistic children b
c. teaching methods used to teach social skills b b b b b b
d. levels of improvement in social skills among autistic children
b b b b b b b b
Copyright bCengage bLearning. bPowered bby Page b4
Cognero.
