Question 1

The correlation coefficient of choice when both sets of measurements are in rank-order form and when fewer than 30 pairs of measurements are involved is

Accepted Answer

A)  the Pearson r. 
B)  the tetrachoric r. 
C)  the Spearman rho. 
D)  the ROTC. 
A)  the Pearson r. 
B)  the tetrachoric r. 
C)  the Spearman rho. 
D)  the ROTC.

Question 2

Approximately what percentage of scores falls below an IQ score of 130 if the mean of the IQ test is 100 and the standard deviation is 15?

Accepted Answer

A)  50 
B)  30 
C)  85 
D)  None of these 
A)  50 
B)  30 
C)  85 
D)  None of these

Question 3

What does the "tail" of a normal distribution refer to?

Accepted Answer

A)  the area of the normal curve between 2 and 3 standard deviations above the mean 
B)  the area of the normal curve between 2 and 3 standard deviations below the mean 
C)  the extremes of the distribution 
D)  the bottom of the distribution 
A)  the area of the normal curve between 2 and 3 standard deviations above the mean 
B)  the area of the normal curve between 2 and 3 standard deviations below the mean 
C)  the extremes of the distribution 
D)  the bottom of the distribution

Question 4

For which type of data is the mode most frequently used?

Accepted Answer

A)  nominal data 
B)  ordinal data 
C)  interval data 
D)  ratio data 
A)  nominal data 
B)  ordinal data 
C)  interval data 
D)  ratio data

Question 5

One general statement that can be made with regard to the use of statistics in analyzing test data is that the choice of statistic frequently depends on

Accepted Answer

A)  the "school of statistics" learned by the person doing the analysis. 
B)  the degree of precision in measurement that is required. 
C)  the importance of the findings in the grand scheme of things. 
D)  the attention to detail that the project requires. 
A)  the "school of statistics" learned by the person doing the analysis. 
B)  the degree of precision in measurement that is required. 
C)  the importance of the findings in the grand scheme of things. 
D)  the attention to detail that the project requires.

Question 6

A raw score of 82 coming from a distribution of scores with a mean of 76 and a standard of 4 is equal to a z score of:

Accepted Answer

A)  +1.5. 
B)  -1.5. 
C)  +4. 
D)  -2. 
A)  +1.5. 
B)  -1.5. 
C)  +4. 
D)  -2.

Question 7

The French word for "black" is a convenient acronym for

Accepted Answer

A)  five factors measured by Binet's test. 
B)  four levels of measurement. 
C)  four parts of the partitioned normal curve. 
D)  five families of frequency distributions. 
A)  five factors measured by Binet's test. 
B)  four levels of measurement. 
C)  four parts of the partitioned normal curve. 
D)  five families of frequency distributions.

Question 8

A 100-item achievement test is administered to 30 students.Students earn 1 point for each correct answer.In the test results there are three scores of 95.All of the other students score between 10 and 30.What measure of central tendency would be MOST representative of this set of scores?

Accepted Answer

A)  average deviation 
B)  the median 
C)  the mode 
D)  the standard deviation 
A)  average deviation 
B)  the median 
C)  the mode 
D)  the standard deviation

Question 9

A graphed distribution that is relatively flat is referred to as

Accepted Answer

A)  leptokurtic. 
B)  mesokurtic. 
C)  platykurtic. 
D)  microkurtic. 
A)  leptokurtic. 
B)  mesokurtic. 
C)  platykurtic. 
D)  microkurtic.

Question 10

In a grouped frequency distribution

Accepted Answer

A)  the total of the frequency column is equal to the total number of scores in the distribution. 
B)  test-score intervals replace the actual test scores. 
C)  each test score must fall in only one test-score interval. 
D)  All of these 
A)  the total of the frequency column is equal to the total number of scores in the distribution. 
B)  test-score intervals replace the actual test scores. 
C)  each test score must fall in only one test-score interval. 
D)  All of these

Question 11

The mean for the set of scores 8,9,and 7 is

Accepted Answer

A)  7. 
B)  8. 
C)  9. 
D)  24. 
A)  7. 
B)  8. 
C)  9. 
D)  24.

Question 12

In a scale used in a psychology experiment,a value of "1" is assigned to subjects with black hair,and a value of "2" is assigned to subjects with blonde hair.The type of scale used in this experiment is:

Accepted Answer

A)  ordinal. 
B)  ratio. 
C)  interval. 
D)  nominal. 
A)  ordinal. 
B)  ratio. 
C)  interval. 
D)  nominal.

Question 13

What is the relationship between the correlation coefficient and the standard error of estimate?

Accepted Answer

A)  It is a positive relationship. 
B)  It is an inverse relationship. 
C)  No relationship exists. 
D)  None of these 
A)  It is a positive relationship. 
B)  It is an inverse relationship. 
C)  No relationship exists. 
D)  None of these

Question 14

Which statistic conveys the LEAST precise measure of dispersion?

Accepted Answer

A)  the range 
B)  the variance 
C)  the standard deviation 
D)  the semi-interquartile range 
A)  the range 
B)  the variance 
C)  the standard deviation 
D)  the semi-interquartile range

Question 15

A correlation coefficient equal to -.98 would indicate

Accepted Answer

A)  a weak inverse relationship between the two variables. 
B)  a weak direct relationship between the two variables. 
C)  a strong inverse relationship between the two variables. 
D)  a strong direct relationship between the two variables. 
A)  a weak inverse relationship between the two variables. 
B)  a weak direct relationship between the two variables. 
C)  a strong inverse relationship between the two variables. 
D)  a strong direct relationship between the two variables.

Question 16

The mean,the median,and the mode are all

Accepted Answer

A)  measures of central tendency. 
B)  measures of variability. 
C)  measures of dispersion. 
D)  standard scores. 
A)  measures of central tendency. 
B)  measures of variability. 
C)  measures of dispersion. 
D)  standard scores.

Question 17

Charles Spearman is credited with

Accepted Answer

A)  developing a type of correlation coefficient. 
B)  developing a way to predict the accuracy of a test. 
C)  developing factor analysis. 
D)  All of these 
A)  developing a type of correlation coefficient. 
B)  developing a way to predict the accuracy of a test. 
C)  developing factor analysis. 
D)  All of these

Question 18

When graphing ratio data,why is it preferable to set the ordinate of the y-axis at 0?

Accepted Answer

A)  It is simply the traditional way of doing things, and has no inherent benefit. 
B)  Setting the ordinate to other values may yield an exaggerated impression of the changes in the variable. 
C)  Doing so is the best protection against statistic-based challenges regarding methodology, findings, and conclusions. 
D)  Ratio-level data has a theoretical range from 0 to plus or minus infinity. 
A)  It is simply the traditional way of doing things, and has no inherent benefit. 
B)  Setting the ordinate to other values may yield an exaggerated impression of the changes in the variable. 
C)  Doing so is the best protection against statistic-based challenges regarding methodology, findings, and conclusions. 
D)  Ratio-level data has a theoretical range from 0 to plus or minus infinity.

Question 19

A z score scale has sometimes been referred to as a "zero plus or minus one" scale because a z score scale

Accepted Answer

A)  has a mean set at 0 and a standard deviation set at 1. 
B)  has a mean set at 0 and a standard deviation set at -1. 
C)  has a standard deviation set at 0, and a mean set at 1. 
D)  None of these 
A)  has a mean set at 0 and a standard deviation set at 1. 
B)  has a mean set at 0 and a standard deviation set at -1. 
C)  has a standard deviation set at 0, and a mean set at 1. 
D)  None of these

Question 20

The median and the interquartile range are __________ in nature.

Accepted Answer

A)  reciprocal 
B)  ordinal 
C)  interval 
D)  opposite 
A)  reciprocal 
B)  ordinal 
C)  interval 
D)  opposite

The correlation coefficient of choice when both sets of measurements are in rank-order form and when fewer than 30 pairs of measurements are involved is

Approximately what percentage of scores falls below an IQ score of 130 if the mean of the IQ test is 100 and the standard deviation is 15?

What does the "tail" of a normal distribution refer to?

For which type of data is the mode most frequently used?

One general statement that can be made with regard to the use of statistics in analyzing test data is that the choice of statistic frequently depends on

A raw score of 82 coming from a distribution of scores with a mean of 76 and a standard of 4 is equal to a z score of:

The French word for "black" is a convenient acronym for

A 100-item achievement test is administered to 30 students.Students earn 1 point for each correct answer.In the test results there are three scores of 95.All of the other students score between 10 and 30.What measure of central tendency would be MOST representative of this set of scores?

A graphed distribution that is relatively flat is referred to as

In a grouped frequency distribution

The mean for the set of scores 8,9,and 7 is

In a scale used in a psychology experiment,a value of "1" is assigned to subjects with black hair,and a value of "2" is assigned to subjects with blonde hair.The type of scale used in this experiment is:

What is the relationship between the correlation coefficient and the standard error of estimate?

Which statistic conveys the LEAST precise measure of dispersion?

A correlation coefficient equal to -.98 would indicate

The mean,the median,and the mode are all

Charles Spearman is credited with

When graphing ratio data,why is it preferable to set the ordinate of the y-axis at 0?

A z score scale has sometimes been referred to as a "zero plus or minus one" scale because a z score scale

The median and the interquartile range are __________ in nature.

Psychological Testing and Assessment

Historical, cultural, and Legal Ethical Considerations

Of Tests and Testing

Reliability

Validity

Utility

Test Development

Intelligence and Its Measurement

Tests of Intelligence

Assessment for Education

Personality Assessment: An Overview

Personality Assessment Methods

Clinical and Counseling Assessment

Neuropsychological Assessment

Assessment, Careers, and Business References

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Exam 3: A Statistics Refresher

The correlation coefficient of choice when both sets of measurements are in rank-order form and when fewer than 30 pairs of measurements are involved is

Approximately what percentage of scores falls below an IQ score of 130 if the mean of the IQ test is 100 and the standard deviation is 15?

What does the "tail" of a normal distribution refer to?

For which type of data is the mode most frequently used?

One general statement that can be made with regard to the use of statistics in analyzing test data is that the choice of statistic frequently depends on

A raw score of 82 coming from a distribution of scores with a mean of 76 and a standard of 4 is equal to a z score of:

The French word for "black" is a convenient acronym for

A 100-item achievement test is administered to 30 students.Students earn 1 point for each correct answer.In the test results there are three scores of 95.All of the other students score between 10 and 30.What measure of central tendency would be MOST representative of this set of scores?

A graphed distribution that is relatively flat is referred to as

In a grouped frequency distribution

The mean for the set of scores 8,9,and 7 is

In a scale used in a psychology experiment,a value of "1" is assigned to subjects with black hair,and a value of "2" is assigned to subjects with blonde hair.The type of scale used in this experiment is:

What is the relationship between the correlation coefficient and the standard error of estimate?

Which statistic conveys the LEAST precise measure of dispersion?

A correlation coefficient equal to -.98 would indicate

The mean,the median,and the mode are all

Charles Spearman is credited with

When graphing ratio data,why is it preferable to set the ordinate of the y-axis at 0?

A z score scale has sometimes been referred to as a "zero plus or minus one" scale because a z score scale

The median and the interquartile range are __________ in nature.

Psychological Testing and Assessment

Historical, cultural, and Legal Ethical Considerations

Of Tests and Testing

Reliability

Validity

Utility

Test Development

Intelligence and Its Measurement

Tests of Intelligence

Assessment for Education

Personality Assessment: An Overview

Personality Assessment Methods

Clinical and Counseling Assessment

Neuropsychological Assessment

Assessment, Careers, and Business References

Filters