Question 1

The process of standardizing scores _____ the basic shape of the distribution.

Accepted Answer

A) normalizes 
B) changes 
C) does not change 
D) reveals 
A) normalizes 
B) changes 
C) does not change 
D) reveals

Question 2

John scored an 85 on his psychology exam.The class mean was 75 and the standard deviation was 4.What is John's standard score?

Accepted Answer

A) 2.5 
B) -2.5 
C) .625 
D) -.625 
A) 2.5 
B) -2.5 
C) .625 
D) -.625

Question 3

Not all normal distributions are symmetrical about the mean.

Accepted Answer

A) True 
 B)False

Question 4

In general,observations are meaningful only in relation to other observations.

Accepted Answer

A) True 
 B)False

Question 5

When a standard score is 0,the original (raw)score is equal to the _____ of the distribution.

Accepted Answer

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

Question 6

Standardization _____ the central tendency and variability of the scores.

Accepted Answer

A) affects 
B) does not affect 
C) minimizes 
D) maximizes 
A) affects 
B) does not affect 
C) minimizes 
D) maximizes

Question 7

A standard score represents the number of _____ that a score falls above or below the mean.

Accepted Answer

A) units 
B) percentile units 
C) standard deviation units 
D) standard score units 
A) units 
B) percentile units 
C) standard deviation units 
D) standard score units

Question 8

In a normal distribution,approximately _____ of all scores fall between the standard scores of -1 and +1.

Accepted Answer

A) 50% 
B) 68% 
C) 33% 
D) 25% 
A) 50% 
B) 68% 
C) 33% 
D) 25%

Question 9

If you want to compare scores for example your math score and score on your psychology exam you should_____.

Accepted Answer

A) Convert them into a standard score 
B) Convert them into a Z-score 
C) Determine the means of the class 
D) Both a & b 
A) Convert them into a standard score 
B) Convert them into a Z-score 
C) Determine the means of the class 
D) Both a & b

Question 10

A raw score of 96 on two separate examinations may have different _____ depending on the mean and standard deviations of each examination.

Accepted Answer

A) percentile ranks 
B) standard scores 
C) percentiles 
D) all of these 
A) percentile ranks 
B) standard scores 
C) percentiles 
D) all of these

Question 11

Which of the following does a percentile rank and a standard score have in common?

Accepted Answer

A) both reflect the relative position of a score in a set of scores 
B) both reflect only an ordinal measure of relative standing 
C) both reflect the mean and standard deviation of the entire group of scores 
D) all of these 
A) both reflect the relative position of a score in a set of scores 
B) both reflect only an ordinal measure of relative standing 
C) both reflect the mean and standard deviation of the entire group of scores 
D) all of these

Question 12

How does the standardization of a set of scores affect the basic shape of the distribution?

Accepted Answer

The process of standardizing scores does

Question 13

A survey finds that 50% of college students spend 10 hours or less on homework weekly.The percentile rank of _____ is _____.

Accepted Answer

A) 50;10 
B) 10;50 
C) 50;50 
D) cannot be determined 
A) 50;10 
B) 10;50 
C) 50;50 
D) cannot be determined

Question 14

Distinguish between a percentile rank and a percentile.

Accepted Answer

The percentage of scores in the distribu

Question 15

In a frequency distribution,the term designating the score corresponding to the 50th percentile is known as the _____.

Accepted Answer

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

Question 16

Given a normal distribution of test scores with
= 80,s2 = 49,what percentage of scores fall between the test scores of 70 and 95?

Accepted Answer

A) 25% 
B) 64% 
C) 97% 
D) 91% 
A) 25% 
B) 64% 
C) 97% 
D) 91%

Question 17

The _____ of the standard score formula represents the number of units the score is above or below the mean.

Accepted Answer

A) numerator 
B) denominator 
C) obtained value 
D) none of these 
A) numerator 
B) denominator 
C) obtained value 
D) none of these

Question 18

The percentile rank of a score is the same as a percentile.

Accepted Answer

A) True 
 B)False

Question 19

Based on the Applications to the Analysis of Social Problems section of Chapter 4,a variant of the standard scores formula may be calculated using the _____ and _____ instead of the mean and standard deviation,respectively.

Accepted Answer

A) median;range 
B) median;median of absolute deviations 
C) mode;interquartile range 
D) mode;variance 
A) median;range 
B) median;median of absolute deviations 
C) mode;interquartile range 
D) mode;variance

Question 20

A _____ standard score indicates that the original score is _____ than the mean.

Accepted Answer

A) positive;greater 
B) negative;less 
C) a and b 
D) neither a nor b 
A) positive;greater 
B) negative;less 
C) a and b 
D) neither a nor b

The process of standardizing scores _____ the basic shape of the distribution.

John scored an 85 on his psychology exam.The class mean was 75 and the standard deviation was 4.What is John's standard score?

Not all normal distributions are symmetrical about the mean.

In general,observations are meaningful only in relation to other observations.

When a standard score is 0,the original (raw)score is equal to the _____ of the distribution.

Standardization _____ the central tendency and variability of the scores.

A standard score represents the number of _____ that a score falls above or below the mean.

In a normal distribution,approximately _____ of all scores fall between the standard scores of -1 and +1.

If you want to compare scores for example your math score and score on your psychology exam you should_____.

A raw score of 96 on two separate examinations may have different _____ depending on the mean and standard deviations of each examination.

Which of the following does a percentile rank and a standard score have in common?

How does the standardization of a set of scores affect the basic shape of the distribution?

A survey finds that 50% of college students spend 10 hours or less on homework weekly.The percentile rank of _ is _.

Distinguish between a percentile rank and a percentile.

In a frequency distribution,the term designating the score corresponding to the 50th percentile is known as the _____.

Given a normal distribution of test scores with = 80,s²= 49,what percentage of scores fall between the test scores of 70 and 95?

The _____ of the standard score formula represents the number of units the score is above or below the mean.

The percentile rank of a score is the same as a percentile.

Based on the Applications to the Analysis of Social Problems section of Chapter 4,a variant of the standard scores formula may be calculated using the _ and _ instead of the mean and standard deviation,respectively.

A _ standard score indicates that the original score is _ than the mean.

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Measures of Central Tendency and Variability

Pearson Correlation and Regression: Descriptive Aspects

Probability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

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 4: Percentiles,percentile Ranks,standard Scores,and the Normal Distribution

The process of standardizing scores _____ the basic shape of the distribution.

John scored an 85 on his psychology exam.The class mean was 75 and the standard deviation was 4.What is John's standard score?

Not all normal distributions are symmetrical about the mean.

In general,observations are meaningful only in relation to other observations.

When a standard score is 0,the original (raw)score is equal to the _____ of the distribution.

Standardization _____ the central tendency and variability of the scores.

A standard score represents the number of _____ that a score falls above or below the mean.

In a normal distribution,approximately _____ of all scores fall between the standard scores of -1 and +1.

If you want to compare scores for example your math score and score on your psychology exam you should_____.

A raw score of 96 on two separate examinations may have different _____ depending on the mean and standard deviations of each examination.

Which of the following does a percentile rank and a standard score have in common?

How does the standardization of a set of scores affect the basic shape of the distribution?

A survey finds that 50% of college students spend 10 hours or less on homework weekly.The percentile rank of _____ is _____.

Distinguish between a percentile rank and a percentile.

In a frequency distribution,the term designating the score corresponding to the 50th percentile is known as the _____.

Given a normal distribution of test scores with = 80,s2 = 49,what percentage of scores fall between the test scores of 70 and 95?

The _____ of the standard score formula represents the number of units the score is above or below the mean.

The percentile rank of a score is the same as a percentile.

Based on the Applications to the Analysis of Social Problems section of Chapter 4,a variant of the standard scores formula may be calculated using the _____ and _____ instead of the mean and standard deviation,respectively.

A _____ standard score indicates that the original score is _____ than the mean.

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Measures of Central Tendency and Variability

Pearson Correlation and Regression: Descriptive Aspects

Probability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

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

A survey finds that 50% of college students spend 10 hours or less on homework weekly.The percentile rank of _ is _.

Given a normal distribution of test scores with = 80,s²= 49,what percentage of scores fall between the test scores of 70 and 95?

Based on the Applications to the Analysis of Social Problems section of Chapter 4,a variant of the standard scores formula may be calculated using the _ and _ instead of the mean and standard deviation,respectively.

A _ standard score indicates that the original score is _ than the mean.