Question 1

A distribution of test scores has a three-way tie for the most frequently occurring score.This distribution could be described as

Accepted Answer

A)  trimedial. 
B)  kurtotic. 
C)  trimodal. 
D)  skewed. 
A)  trimedial. 
B)  kurtotic. 
C)  trimodal. 
D)  skewed.

Question 2

Which is the only measure of central tendency that can be used for all nominal,ordinal,interval,and ratio scales of measurement?

Accepted Answer

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

Question 3

For the distribution of test scores 85,76,71,86,and 92,the arithmetic mean is equal to

Accepted Answer

A)  71. 
B)  85. 
C)  82. 
D)  80. 
A)  71. 
B)  85. 
C)  82. 
D)  80.

Question 4

Which of the following is TRUE of kurtosis?

Accepted Answer

A)  Computer programs provide an index of skewness that ranges from -3 to +3. 
B)  Computer program provide an index of skewness that ranges from -1 to +1. 
C)  No widely accepted definition of this concept exists. 
D)  It was first conceived and named by a Swedish statistician named Kurt. 
A)  Computer programs provide an index of skewness that ranges from -3 to +3. 
B)  Computer program provide an index of skewness that ranges from -1 to +1. 
C)  No widely accepted definition of this concept exists. 
D)  It was first conceived and named by a Swedish statistician named Kurt.

Question 5

A nonlinear transformation is used to convert a raw score to

Accepted Answer

A)  an IQ score. 
B)  a z score. 
C)  a normalized score. 
D)  None of these 
A)  an IQ score. 
B)  a z score. 
C)  a normalized score. 
D)  None of these

Question 6

If a test-taker earns a z score of +2 on a test,approximately how many other testtakers obtained higher scores,assuming the distribution of test scores is normal?

Accepted Answer

A)  2.5% 
B)  14% 
C)  16% 
D)  25% 
A)  2.5% 
B)  14% 
C)  16% 
D)  25%

Question 7

A distribution of test scores can be described by

Accepted Answer

A)  a measure of central tendency 
B)  a measure of deviation 
C)  a graph 
D)  All of these 
A)  a measure of central tendency 
B)  a measure of deviation 
C)  a graph 
D)  All of these

Question 8

Outliers can be useful in identifying testtakers who

Accepted Answer

A)  failed to understand the test instructions. 
B)  failed to follow the test instructions. 
C)  Both a and b 
D)  None of these 
A)  failed to understand the test instructions. 
B)  failed to follow the test instructions. 
C)  Both a and b 
D)  None of these

Question 9

Statistical tools are used for

Accepted Answer

A)  describing numbers. 
B)  making inferences about numbers. 
C)  drawing conclusions about numbers. 
D)  All of these 
A)  describing numbers. 
B)  making inferences about numbers. 
C)  drawing conclusions about numbers. 
D)  All of these

Question 10

Generally,what type of correlation exists between hours of study time spent studying for an achievement test and the student's performance on the test?

Accepted Answer

A)  it depends what the subject of the test is 
B)  a negative correlation 
C)  a positive correlation 
D)  zero correlation 
A)  it depends what the subject of the test is 
B)  a negative correlation 
C)  a positive correlation 
D)  zero correlation

Question 11

John received a z score of 0.5 on an exam.Peter received a T score of 60 on that same exam.What can be said about their relative performance on the exam?

Accepted Answer

A)  There is not enough information to compare John's and Peter's exam scores. 
B)  Peter received a higher raw score than John on the exam. 
C)  John received a higher raw score than Peter on the exam. 
D)  The two test-takers actually received the same score on the exam. 
A)  There is not enough information to compare John's and Peter's exam scores. 
B)  Peter received a higher raw score than John on the exam. 
C)  John received a higher raw score than Peter on the exam. 
D)  The two test-takers actually received the same score on the exam.

Question 12

The range is a measure of variation that is simple enough to calculate,but its value is

Accepted Answer

A)  greatly affected by extreme scores in the distribution. 
B)  not affected enough by extreme scores in the distribution. 
C)  extremely limited when a distribution is relatively platykurtic. 
D)  too exaggerated for use with a normal distribution. 
A)  greatly affected by extreme scores in the distribution. 
B)  not affected enough by extreme scores in the distribution. 
C)  extremely limited when a distribution is relatively platykurtic. 
D)  too exaggerated for use with a normal distribution.

Question 13

A correlation coefficient that is significant at the p < .01 level

Accepted Answer

A)  has a 99% chance of being accurate. 
B)  could have been expected to occur by chance alone one time or less in 100. 
C)  could have been expected to occur by chance alone 99 times or more in 100. 
D)  accounts for about 1% of the variance. 
A)  has a 99% chance of being accurate. 
B)  could have been expected to occur by chance alone one time or less in 100. 
C)  could have been expected to occur by chance alone 99 times or more in 100. 
D)  accounts for about 1% of the variance.

Question 14

A simple frequency distribution is labeled as such to indicate that the data in it

Accepted Answer

A)  occurs with no particular frequency. 
B)  have not been grouped. 
C)  are not particularly complex. 
D)  have only been averaged using the arithmetic mean. 
A)  occurs with no particular frequency. 
B)  have not been grouped. 
C)  are not particularly complex. 
D)  have only been averaged using the arithmetic mean.

Question 15

To make data more manageable,it is sometimes converted to graphs or tables.Graphs or tables can be created from

Accepted Answer

A)  nominal level data. 
B)  ordinal level data. 
C)  ratio level data. 
D)  All of these 
A)  nominal level data. 
B)  ordinal level data. 
C)  ratio level data. 
D)  All of these

Question 16

In a distribution that is positively skewed,what is the relationship between the measures of central tendency?

Accepted Answer

A)  The mean, the median, and the mode are equal. 
B)  The mean is greater than the median, which is greater than the mode. 
C)  The mean is greater than the mode, which is greater than the median. 
D)  The standard deviation is larger than the variance, which is larger than the range. 
A)  The mean, the median, and the mode are equal. 
B)  The mean is greater than the median, which is greater than the mode. 
C)  The mean is greater than the mode, which is greater than the median. 
D)  The standard deviation is larger than the variance, which is larger than the range.

A distribution of test scores has a three-way tie for the most frequently occurring score.This distribution could be described as

Which is the only measure of central tendency that can be used for all nominal,ordinal,interval,and ratio scales of measurement?

For the distribution of test scores 85,76,71,86,and 92,the arithmetic mean is equal to

Which of the following is TRUE of kurtosis?

A nonlinear transformation is used to convert a raw score to

If a test-taker earns a z score of +2 on a test,approximately how many other testtakers obtained higher scores,assuming the distribution of test scores is normal?

A distribution of test scores can be described by

Outliers can be useful in identifying testtakers who

Statistical tools are used for

Generally,what type of correlation exists between hours of study time spent studying for an achievement test and the student's performance on the test?

John received a z score of 0.5 on an exam.Peter received a T score of 60 on that same exam.What can be said about their relative performance on the exam?

The range is a measure of variation that is simple enough to calculate,but its value is

A correlation coefficient that is significant at the p < .01 level

A simple frequency distribution is labeled as such to indicate that the data in it

To make data more manageable,it is sometimes converted to graphs or tables.Graphs or tables can be created from

In a distribution that is positively skewed,what is the relationship between the measures of central tendency?

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

A distribution of test scores has a three-way tie for the most frequently occurring score.This distribution could be described as

Which is the only measure of central tendency that can be used for all nominal,ordinal,interval,and ratio scales of measurement?

For the distribution of test scores 85,76,71,86,and 92,the arithmetic mean is equal to

Which of the following is TRUE of kurtosis?

A nonlinear transformation is used to convert a raw score to

If a test-taker earns a z score of +2 on a test,approximately how many other testtakers obtained higher scores,assuming the distribution of test scores is normal?

A distribution of test scores can be described by

Outliers can be useful in identifying testtakers who

Statistical tools are used for

Generally,what type of correlation exists between hours of study time spent studying for an achievement test and the student's performance on the test?

John received a z score of 0.5 on an exam.Peter received a T score of 60 on that same exam.What can be said about their relative performance on the exam?

The range is a measure of variation that is simple enough to calculate,but its value is

A correlation coefficient that is significant at the p < .01 level

A simple frequency distribution is labeled as such to indicate that the data in it

To make data more manageable,it is sometimes converted to graphs or tables.Graphs or tables can be created from

In a distribution that is positively skewed,what is the relationship between the measures of central tendency?

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