Question 1

The ordinary arithmetic average is called the __________.

Accepted Answer

The answer of The ordinary arithmetic average is called the...

Question 2

Whose name is associated with behaviorism and opposition to the field of statistics on the basis that important information may be lost by averaging the results of a number of cases?

Accepted Answer

A) James 
B) Freud 
C) Wolpe 
D) Skinner 
A) James 
B) Freud 
C) Wolpe 
D) Skinner

Question 3

A(n)__________ is the number of standard deviations a score is above or below the mean.

Accepted Answer

The answer of A(n)__________ is the number of standard deviations...

Question 4

A raw score is equal to the:

Accepted Answer

A) Z score multiplied by the standard deviation, plus the mean 
B) Z score multiplied by the variance, plus the mean 
C) standard deviation multiplied by the mean, plus the variance 
D) raw score minus the mean, divided by the variance 
A) Z score multiplied by the standard deviation, plus the mean 
B) Z score multiplied by the variance, plus the mean 
C) standard deviation multiplied by the mean, plus the variance 
D) raw score minus the mean, divided by the variance

Question 5

The ordinary average of a group of numbers is called the __________.

Accepted Answer

A) median 
B) mean 
C) standard deviation 
D) mode 
A) median 
B) mean 
C) standard deviation 
D) mode

Question 6

Donald's score on the statistics test was +1.25. This means that he scored:

Accepted Answer

A) slightly below the average 
B) just at the average 
C) a little less than one standard deviation below the mean 
D) more than one standard deviation above the mean 
A) slightly below the average 
B) just at the average 
C) a little less than one standard deviation below the mean 
D) more than one standard deviation above the mean

Question 7

Place the five steps for computing variance into the correct order: 1. Divide the sum of squared deviations by the number of scores.
2) Subtract the mean from each score.
3) Add up the squared deviation scores.
4) Compute the mean of the sample.
5) Square each of the deviation scores.

Accepted Answer

A) 2, 3, 1, 4, 5 
B) 5, 1, 2, 4, 3 
C) 4, 5, 2, 1, 3 
D) 4, 2, 5, 3, 1 
A) 2, 3, 1, 4, 5 
B) 5, 1, 2, 4, 3 
C) 4, 5, 2, 1, 3 
D) 4, 2, 5, 3, 1

Question 8

After attending an anxiety-reduction therapy session, a wife's anxiety score is 75, while her husband's is 80. Overall, women's average anxiety score after the sessions is 70 (SD = 10)and men's average anxiety score after the sessions is 85 (SD = 5).
Relative to others of their own gender, who has the lower anxiety score after the session?
Explain your answer to someone who has never had a course in statistics.

Accepted Answer

Wife's Z = .5; Husband's Z = -

Question 9

A researcher studying the sociological implications of cultural diversity conducts lengthy interviews with members of various cultural communities. What kind of method is this sociologist probably using?

Accepted Answer

A) Behavioral techniques 
B) Quantitative techniques 
C) Qualitative techniques 
D) Positivistic techniques 
A) Behavioral techniques 
B) Quantitative techniques 
C) Qualitative techniques 
D) Positivistic techniques

Question 10

The representative value of a group of scores refers to the middle of the group of scores. All of the following are types of representative values EXCEPT:

Accepted Answer

A) mean 
B) metric 
C) mode 
D) median 
A) mean 
B) metric 
C) mode 
D) median

Question 11

Five people's scores on a survey of product recognition are 17, 12, 20, 13, 8. What is their mean score?

Accepted Answer

A) 12 
B) 13 
C) 14 
D) 10 
A) 12 
B) 13 
C) 14 
D) 10

Question 12

Which of the following is NOT an advantage of Z scores?

Accepted Answer

A) You can compare scores from scales with different amounts of variation. 
B) You can easily tell if a score is above or below the mean. 
C) You can easily tell how far above or below the mean a score is. 
D) You can easily tell the shape of the scores' distribution. 
A) You can compare scores from scales with different amounts of variation. 
B) You can easily tell if a score is above or below the mean. 
C) You can easily tell how far above or below the mean a score is. 
D) You can easily tell the shape of the scores' distribution.

Question 13

The ________ is the usual way of describing the representative value for a nominal variable such as religious affiliation.

Accepted Answer

A) mean 
B) outlier 
C) median 
D) mode 
A) mean 
B) outlier 
C) median 
D) mode

Question 14

The middle value in a set of scores lined up from lowest to highest is the:

Accepted Answer

A) mean 
B) mode 
C) average 
D) median 
A) mean 
B) mode 
C) average 
D) median

Question 15

A group of scores is 6, 18, 4, 21, 22. __________ is the median.

Accepted Answer

The answer of A group of scores is 6, 18,...

Question 16

A raw score is 28, M = 20, and SD = 2. The Z score is __________.

Accepted Answer

The answer of A raw score is 28, M =...

Question 17

Who was the behavioral psychologist opposed to the use of statistics in psychology?

Accepted Answer

A) Cohen 
B) McCracken 
C) Cronbach 
D) Skinner 
A) Cohen 
B) McCracken 
C) Cronbach 
D) Skinner

Question 18

For the questions below: A statistics student (Lee)wants to compare his final exam score to his friend Zoey's final exam score from last year. However, the two exams were scored on different scales. Lee asks Zoey for the mean and standard deviation of her class on the exam as well as her final exam score. Compute the Z scores for Lee and Zoey. Lee: Final exam score = 85; Class: M = 70; SD = 10
Zoey: Final exam score = 45; Class: M = 35; SD = 5

Accepted Answer

A) Lee, Z = 1.50; Zoey, Z = 2.00 
B) Lee, Z = -1.07; Zoey, Z = -1.14 
C) Lee, Z = 1.07; Zoey, Z = -1.14 
D) Lee, Z = 1.07; Zoey, Z = 1.50 
A) Lee, Z = 1.50; Zoey, Z = 2.00 
B) Lee, Z = -1.07; Zoey, Z = -1.14 
C) Lee, Z = 1.07; Zoey, Z = -1.14 
D) Lee, Z = 1.07; Zoey, Z = 1.50

Question 19

The __________ is approximately the average that a score differs from the mean.

Accepted Answer

The answer of The __________ is approximately the average that...

Question 20

The formula for changing a Z score to a raw score is __________.

Accepted Answer

The answer of The formula for changing a Z score...

The ordinary arithmetic average is called the __________.

Whose name is associated with behaviorism and opposition to the field of statistics on the basis that important information may be lost by averaging the results of a number of cases?

A(n)__________ is the number of standard deviations a score is above or below the mean.

A raw score is equal to the:

The ordinary average of a group of numbers is called the __________.

Donald's score on the statistics test was +1.25. This means that he scored:

Place the five steps for computing variance into the correct order: 1. Divide the sum of squared deviations by the number of scores. 2) Subtract the mean from each score. 3) Add up the squared deviation scores. 4) Compute the mean of the sample. 5) Square each of the deviation scores.

A researcher studying the sociological implications of cultural diversity conducts lengthy interviews with members of various cultural communities. What kind of method is this sociologist probably using?

The representative value of a group of scores refers to the middle of the group of scores. All of the following are types of representative values EXCEPT:

Five people's scores on a survey of product recognition are 17, 12, 20, 13, 8. What is their mean score?

Which of the following is NOT an advantage of Z scores?

The ________ is the usual way of describing the representative value for a nominal variable such as religious affiliation.

The middle value in a set of scores lined up from lowest to highest is the:

A group of scores is 6, 18, 4, 21, 22. __________ is the median.

A raw score is 28, M = 20, and SD = 2. The Z score is __________.

Who was the behavioral psychologist opposed to the use of statistics in psychology?

The __________ is approximately the average that a score differs from the mean.

The formula for changing a Z score to a raw score is __________.

Displaying the Order in a Group of Numbers Using Tables and Graphs

Correlation and Prediction

Some Key Ingredients for Inferential Statistics: the Normal Curve, Sample Versus Population, and Probability

Introduction to Hypothesis Testing

Hypothesis Tests With Means of Samples

Making Sense of Statistical Significance: Effect Size and Statistical Power

Introduction to the T Test: Single Sample and Dependent Means

The T Test for Independent Means

Introduction to the Analysis of Variance

Chi-Square Tests and Strategies When Population Distributions Are Not Normal

Applying Statistical Methods in Your Own Research Project

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Exam 2: The Mean, Variance, Standard Deviation, and Z Scores

The ordinary arithmetic average is called the __________.

Whose name is associated with behaviorism and opposition to the field of statistics on the basis that important information may be lost by averaging the results of a number of cases?

A(n)__________ is the number of standard deviations a score is above or below the mean.

A raw score is equal to the:

The ordinary average of a group of numbers is called the __________.

Donald's score on the statistics test was +1.25. This means that he scored:

Place the five steps for computing variance into the correct order: 1. Divide the sum of squared deviations by the number of scores. 2) Subtract the mean from each score. 3) Add up the squared deviation scores. 4) Compute the mean of the sample. 5) Square each of the deviation scores.

A researcher studying the sociological implications of cultural diversity conducts lengthy interviews with members of various cultural communities. What kind of method is this sociologist probably using?

The representative value of a group of scores refers to the middle of the group of scores. All of the following are types of representative values EXCEPT:

Five people's scores on a survey of product recognition are 17, 12, 20, 13, 8. What is their mean score?

Which of the following is NOT an advantage of Z scores?

The ________ is the usual way of describing the representative value for a nominal variable such as religious affiliation.

The middle value in a set of scores lined up from lowest to highest is the:

A group of scores is 6, 18, 4, 21, 22. __________ is the median.

A raw score is 28, M = 20, and SD = 2. The Z score is __________.

Who was the behavioral psychologist opposed to the use of statistics in psychology?

The __________ is approximately the average that a score differs from the mean.

The formula for changing a Z score to a raw score is __________.

Displaying the Order in a Group of Numbers Using Tables and Graphs

Correlation and Prediction

Some Key Ingredients for Inferential Statistics: the Normal Curve, Sample Versus Population, and Probability

Introduction to Hypothesis Testing

Hypothesis Tests With Means of Samples

Making Sense of Statistical Significance: Effect Size and Statistical Power

Introduction to the T Test: Single Sample and Dependent Means

The T Test for Independent Means

Introduction to the Analysis of Variance

Chi-Square Tests and Strategies When Population Distributions Are Not Normal

Applying Statistical Methods in Your Own Research Project

Filters