Question 1

Explain, with examples, how measures of dispersion differ from measures of central tendency.

Accepted Answer

The answer of Explain, with examples, how measures of dispersion...

Question 2

Which one of the following is NOT a measure of dispersion?

Accepted Answer

A)  minimum 
B)  maximum 
C)  mean 
D)  range

Question 3

Statistical procedures cannot summarize complex quantitative data.

Accepted Answer

A) True 
 B)False

Question 4

Data a researcher discovers to be very different in nature from either expected results or the main body of data are referred to as ______.

Accepted Answer

A)  androgynous 
B)  anthropological 
C)  anomalous 
D)  anastigmatic

Question 5

Explain the purpose of the chi-square test and identify the type of data used to compute it.

Accepted Answer

The answer of Explain the purpose of the chi-square test...

Question 6

Variance and standard deviation standardize different measures so we can compare them "on a level playing field."

Accepted Answer

A) True 
 B)False

Question 7

The term "median" refers to the ______ in a data set.

Accepted Answer

A)  score that appears most frequently 
B)  score with equal numbers of scores on either side of it 
C)  lowest score 
D)  average score

Question 8

What does the chi-square statistic compares?

Accepted Answer

A)  mean scores in different groups 
B)  range of scores in different groups 
C)  distribution of scores in different groups 
D)  distribution of means in different groups

Question 9

The chi-square test looks for differences in average scores between two groups.

Accepted Answer

A) True 
 B)False

Question 10

The statistics minimum, maximum, range, variance, and standard deviation are in a class of statistics known as ______.

Accepted Answer

A)  measures of correlation 
B)  measures of disbursement 
C)  measures of dispersion 
D)  descriptive statistics

Question 11

In communication research, the word "metric" refers to ______.

Accepted Answer

A)  use of the metric system in research reporting 
B)  use of scales ranging between 1 and 10 
C)  use of scales ranging between 100 and 1,000 
D)  units of measurement

Question 12

Contingency tables show the relationship between two or more variables.

Accepted Answer

A) True 
 B)False

Question 13

Standard deviation is the square root of variance.

Accepted Answer

A) True 
 B)False

Question 14

Explain the purpose of a z-score and how it is calculated.

Accepted Answer

The answer of Explain the purpose of a z-score and...

Question 15

Anomalous data must be dealt with by not analyzing it.

Accepted Answer

A) True 
 B)False

Question 16

Minimum, maximum, and range are all measures of central tendency.

Accepted Answer

A) True 
 B)False

Question 17

Mean, median, and mode all summarize data in the same way.

Accepted Answer

A) True 
 B)False

Question 18

Mean, median, and mode are all measures of dispersion.

Accepted Answer

A) True 
 B)False

Question 19

Minimum, maximum, and range are all measures of dispersion.

Accepted Answer

A) True 
 B)False

Question 20

Explain mean, median, and mode and how they differ.

Accepted Answer

The answer of Explain mean, median, and mode and how...

Exam 7: Summarizing Research Results: Data Reduction and Descriptive Statistics

Explain, with examples, how measures of dispersion differ from measures of central tendency.

Which one of the following is NOT a measure of dispersion?

Statistical procedures cannot summarize complex quantitative data.

Data a researcher discovers to be very different in nature from either expected results or the main body of data are referred to as ______.

Explain the purpose of the chi-square test and identify the type of data used to compute it.

Variance and standard deviation standardize different measures so we can compare them "on a level playing field."

The term "median" refers to the ______ in a data set.

What does the chi-square statistic compares?

The chi-square test looks for differences in average scores between two groups.

The statistics minimum, maximum, range, variance, and standard deviation are in a class of statistics known as ______.

In communication research, the word "metric" refers to ______.

Contingency tables show the relationship between two or more variables.

Standard deviation is the square root of variance.

Explain the purpose of a z-score and how it is calculated.

Anomalous data must be dealt with by not analyzing it.

Minimum, maximum, and range are all measures of central tendency.

Mean, median, and mode all summarize data in the same way.

Mean, median, and mode are all measures of dispersion.

Minimum, maximum, and range are all measures of dispersion.

Explain mean, median, and mode and how they differ.