Test Bank for Essentials Of Statistics For The Behavioral Sciences 10th Edition Frederick J Gravetter, Larry B. Wallnau, Lori Ann B. Forzano, James E. Witnauer

TEST BANK FOR b b



Essentials Of Statistics For The Behavioral Sciences 10th Edition Frederick J Gravetter, Larry
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B. Wallnau, Lori Ann B. Forzano, James E. Witnauer
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Chapter 01 b




1. A researcher uses an anonymous survey to investigate the television-viewing habits of 100 American adolescents. The
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researcher plans to make an inference about the television-viewing habits of all American adolescents based on the
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results of the survey. The entire group of American adolescents is an example of a .
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a. sample
b. statistic
c. population
d. parameter
ANSWER: c
DIFFICULTY: Apply
REFERENCES: 1.1 Statistics, Science, and Observations
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KEYWORDS: Bloom’s: Apply b




2. A researcher uses an anonymous survey to investigate the social media habits of American college students. Based on
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the set of 300 surveys that were completed and returned, the researcher finds that students spend an average of 2 hours
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each day using social media. The set of 300 students who returned surveys is an example of a
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a. parameter
b. statistic
c. population
d. sample
ANSWER: d
DIFFICULTY: Apply
REFERENCES: 1.1 Statistics, Science, and Observations
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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?
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a. rule out confounding variables
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b. ensure that each person in the population has an equal chance of being selected for the sample
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c. make certain that results are valid
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d. make sure that each participant has an equal chance of being assigned to each experimental condition
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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?
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a. the mean average of 15 participants’ individual scores on a problem-solving task
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b. the percentile that the score of 1 participant on a problem-solving task falls into
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, c. the individual scores of 15 participants on a problem-solving task
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d. the individual score of 1 participant on a problem-solving task
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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
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this average could be obtained, it would be an example of a
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a. parameter
b. statistic
c. population
d. sample
ANSWER: a
DIFFICULTY: Apply
REFERENCES: 1.1 Statistics, Science, and Observations
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KEYWORDS: Bloom’s: Apply b




6. Which statement below regarding populations is true?
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a. Populations typically are small in size. b b b b b



b. Populations cannot consist of non-human animal research subjects.
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c. The experimental research method should be used to examine populations.
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d. It usually is challenging to obtain data from every person in a population.
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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
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b. a statistic and a parameter
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c. a parameter and a population
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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
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a. parameters
b. random sampling b



c. descriptive statistics b



d. inferential statistics b




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,ANSWER: c
DIFFICULTY: Remember
REFERENCES: 1.1 Statistics, Science, and Observations
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KEYWORDS: Bloom’s: Remember b




9. A characteristic, usually a numerical value, which describes a sample is called a
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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,
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they record the individual change in weight for a small group of 25 freshman from this college during their first
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semester. Then, the researcher calculates the average change in weight during the first semester among these 25 students.
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The average is an example of a .
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a. statistic
b. parameter
c. variable
d. constant
ANSWER: a
DIFFICULTY: Apply
REFERENCES: 1.1 Statistics, Science, and Observations
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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,
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if a sample of 20 incoming college freshmen is randomly selected from the United States, it is likely that this sample’s
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average verbal SAT score will not be exactly 530. This is consistent with the concept of
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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
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b variables otherwise introduced to an experiment due to individual differences in participants.
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a. True
b. False

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, ANSWER: True
DIFFICULTY: Understand
REFERENCES: 1.3 Three Data Structures, Research Methods, and Statistics
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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
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than students who had just finishing playing a neutral or antisocial game. For this study, the kind of game given to the
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students was the
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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?
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a. One variable is measured, and two groups are compared.
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b. Two variables are measured, and two groups are compared.
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c. One variable is measured, and there is only one group of participants.
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d. Two variables are measured, and there is only one group of participants.
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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
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an example of which kind of variable?
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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
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autistic children, the dependent variable would be the
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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
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