Question 1

Which of the following is a disadvantage of using the range as a measure of variation?

Accepted Answer

A)  It is limited because only two of the scores in a distribution are used to derive it. 
B)  It is easily distorted by an unusually high or low score in a distribution. 
C)  It can only be used with nominal data. 
D)  Both a and b are disadvantages. 
A)  It is limited because only two of the scores in a distribution are used to derive it. 
B)  It is easily distorted by an unusually high or low score in a distribution. 
C)  It can only be used with nominal data. 
D)  Both a and b are disadvantages.

Question 2

The average deviation is:

Accepted Answer

A)  the arithmetic average. 
B)  the average distance between the scores in a distribution and the mean of the distribution. 
C)  the square root of the average squared deviation from the mean. 
D)  the difference between the lowest and highest score in a distribution. 
A)  the arithmetic average. 
B)  the average distance between the scores in a distribution and the mean of the distribution. 
C)  the square root of the average squared deviation from the mean. 
D)  the difference between the lowest and highest score in a distribution.

Question 3

When calculated on the same distribution of scores, the average deviation will be _____ the standard deviation.

Accepted Answer

A)  less than 
B)  greater than 
C)  the same as 
D)  either greater than or the same as 
A)  less than 
B)  greater than 
C)  the same as 
D)  either greater than or the same as

Which of the following is a disadvantage of using the range as a measure of variation?

The average deviation is:

When calculated on the same distribution of scores, the average deviation will be _____ the standard deviation.

Science and Statistics

Organizing Data, Variables and Measurement

Measures of Central Tendency

Standard Scores Z Scores

Probability, Hypothesis Testing and Inferential Statistics

The Single-Sample Z Test

The Single-Sample T Test

The T Test for Independent Groups Samples

T Test for Correlated Groups Samples

Comparing More Than Two Groups

One-Way Between-Subjects Analysis of Variance Anova

One-Way Repeated Measures Anova

Using Designs With More Than One Independent Variable and Two-Way Between-Subjects Anova

Correlational Research and Correlation Coefficients

Advanced Correlational Techniques: Regression Analysis

Chi-Square Tests

Tests for Ordinal Data

Filters

Exam 4: Measures of Variation

Which of the following is a disadvantage of using the range as a measure of variation?

The average deviation is:

When calculated on the same distribution of scores, the average deviation will be _____ the standard deviation.

Science and Statistics

Organizing Data, Variables and Measurement

Measures of Central Tendency

Standard Scores Z Scores

Probability, Hypothesis Testing and Inferential Statistics

The Single-Sample Z Test

The Single-Sample T Test

The T Test for Independent Groups Samples

T Test for Correlated Groups Samples

Comparing More Than Two Groups

One-Way Between-Subjects Analysis of Variance Anova

One-Way Repeated Measures Anova

Using Designs With More Than One Independent Variable and Two-Way Between-Subjects Anova

Correlational Research and Correlation Coefficients

Advanced Correlational Techniques: Regression Analysis

Chi-Square Tests

Tests for Ordinal Data

Filters