Question 1

In APA journal articles the results sections usually report the _____and_____of the data set.

Accepted Answer

A) mean;variance 
B) mean;SD 
C) median;SD 
D) median;variance 
A) mean;variance 
B) mean;SD 
C) median;SD 
D) median;variance

Question 2

The measure of central tendency that is used with qualitative data is____________________.

Accepted Answer

The answer of The measure of central tendency that is...

Question 3

The mean is

Accepted Answer

A) the most frequently occurring score. 
B) the mathematical average. 
C) the midpoint of the distribution. 
A) the most frequently occurring score. 
B) the mathematical average. 
C) the midpoint of the distribution.

Question 4

The median of a distribution of scores is the score that occurs most frequently.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following statements is true of a median score?

Accepted Answer

A) It divides a distribution in half. 
B) It may not have been a score actually achieved. 
C) Both a and b. 
D) Neither a nor b. 
A) It divides a distribution in half. 
B) It may not have been a score actually achieved. 
C) Both a and b. 
D) Neither a nor b.

Question 6

Based on the Method of Presentation section of Chapter 3,which of the following symbols should be used to report the mean in a behavioral science journal,according to the American Psychological Association (APA)?

Accepted Answer

A) M 
B) m 
C)    
A) M 
B) m 
C)

Question 7

After giving a test to all members of his college class,a professor found that the scores totaled 1500 and the mean was 75.How many students took the test?

Accepted Answer

A) 25 
B) 20 
C) 22 
D) cannot be determined without additional information 
A) 25 
B) 20 
C) 22 
D) cannot be determined without additional information

Question 8

Compute the median of the following set of scores: 106,106,109,110,113,121,121.

Accepted Answer

A) 109.5 
B) 110 
C) 106 and 121 
D) cannot be determined from information given 
A) 109.5 
B) 110 
C) 106 and 121 
D) cannot be determined from information given

Question 9

When the mean and median are different,the sum of the squared deviations from the mean will always be less than the sum of the squared deviations from the median.

Accepted Answer

A) True 
 B)False

Question 10

One problem with the sum of squares as an index of variability is that its size depends not only on the amount of variability among scores,but also on the number of scores (N).

Accepted Answer

A) True 
 B)False

Question 11

Which of the following statements is true about the median?

Accepted Answer

A) It divides a distribution in half. 
B) It may not have been a score actually in the distribution 
C) Approximately 50% of the scores will be above the median and 50% below. 
D) All of these are correct. 
A) It divides a distribution in half. 
B) It may not have been a score actually in the distribution 
C) Approximately 50% of the scores will be above the median and 50% below. 
D) All of these are correct.

Question 12

The sum of signed deviations about the mean will always equal _____.

Accepted Answer

A) 10 
B) -10 
C) the sum of squares 
D) 0 
A) 10 
B) -10 
C) the sum of squares 
D) 0

Question 13

The range is a measure of central tendency.

Accepted Answer

A) True 
 B)False

Question 14

Compute the sum of squares for the following data set: 2,2,3,6,9,13,14.

Accepted Answer

A) 156 
B) 22.28 
C) 7 
D) none of these 
A) 156 
B) 22.28 
C) 7 
D) none of these

Question 15

The class exam one in your statistics course indicates the Mean was 75 the Median was 78 and the Mode 79.50.This indicates a _____distribution.

Accepted Answer

A) normal 
B) negatively skewed 
C) positively skewed 
D) None of these 
A) normal 
B) negatively skewed 
C) positively skewed 
D) None of these

Question 16

The _____tells us the average variability in a cluster of scores.

Accepted Answer

A) variance 
B) standard deviation 
C) mean 
D) Both Variance and Standard Deviation 
E) All of these 
A) variance 
B) standard deviation 
C) mean 
D) Both Variance and Standard Deviation 
E) All of these

Question 17

The positive square root of the variance is the _____.

Accepted Answer

A) root square mean 
B) standard deviation 
C) variance square root 
D) absolute squared deviation 
A) root square mean 
B) standard deviation 
C) variance square root 
D) absolute squared deviation

Question 18

Most of the inferential statistics used by behavioral scientists make use of the median as a measure of central tendency.

Accepted Answer

A) True 
 B)False

Question 19

Distributions of scores can have _____.

Accepted Answer

A) identical standard deviations with different means 
B) identical means with different standard deviations 
C) either a or b 
D) neither a nor b 
A) identical standard deviations with different means 
B) identical means with different standard deviations 
C) either a or b 
D) neither a nor b

Question 20

The sum of signed deviations about the mean will always equal 1.0.

Accepted Answer

A) True 
 B)False

In APA journal articles the results sections usually report the _and_of the data set.

The measure of central tendency that is used with qualitative data is____________________.

The mean is

The median of a distribution of scores is the score that occurs most frequently.

Which of the following statements is true of a median score?

Based on the Method of Presentation section of Chapter 3,which of the following symbols should be used to report the mean in a behavioral science journal,according to the American Psychological Association (APA)?

After giving a test to all members of his college class,a professor found that the scores totaled 1500 and the mean was 75.How many students took the test?

Compute the median of the following set of scores: 106,106,109,110,113,121,121.

When the mean and median are different,the sum of the squared deviations from the mean will always be less than the sum of the squared deviations from the median.

One problem with the sum of squares as an index of variability is that its size depends not only on the amount of variability among scores,but also on the number of scores (N).

Which of the following statements is true about the median?

The sum of signed deviations about the mean will always equal _____.

The range is a measure of central tendency.

Compute the sum of squares for the following data set: 2,2,3,6,9,13,14.

The class exam one in your statistics course indicates the Mean was 75 the Median was 78 and the Mode 79.50.This indicates a _____distribution.

The _____tells us the average variability in a cluster of scores.

The positive square root of the variance is the _____.

Most of the inferential statistics used by behavioral scientists make use of the median as a measure of central tendency.

Distributions of scores can have _____.

The sum of signed deviations about the mean will always equal 1.0.

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Percentiles percentile Ranks standard Scores and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Probability

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T -Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

Exam 3: Measures of Central Tendency and Variability

In APA journal articles the results sections usually report the _____and_____of the data set.

The measure of central tendency that is used with qualitative data is____________________.

The mean is

The median of a distribution of scores is the score that occurs most frequently.

Which of the following statements is true of a median score?

Based on the Method of Presentation section of Chapter 3,which of the following symbols should be used to report the mean in a behavioral science journal,according to the American Psychological Association (APA)?

After giving a test to all members of his college class,a professor found that the scores totaled 1500 and the mean was 75.How many students took the test?

Compute the median of the following set of scores: 106,106,109,110,113,121,121.

When the mean and median are different,the sum of the squared deviations from the mean will always be less than the sum of the squared deviations from the median.

One problem with the sum of squares as an index of variability is that its size depends not only on the amount of variability among scores,but also on the number of scores (N).

Which of the following statements is true about the median?

The sum of signed deviations about the mean will always equal _____.

The range is a measure of central tendency.

Compute the sum of squares for the following data set: 2,2,3,6,9,13,14.

The class exam one in your statistics course indicates the Mean was 75 the Median was 78 and the Mode 79.50.This indicates a _____distribution.

The _____tells us the average variability in a cluster of scores.

The positive square root of the variance is the _____.

Most of the inferential statistics used by behavioral scientists make use of the median as a measure of central tendency.

Distributions of scores can have _____.

The sum of signed deviations about the mean will always equal 1.0.

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Percentiles percentile Ranks standard Scores and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Probability

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T -Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

In APA journal articles the results sections usually report the _and_of the data set.