Question 1

Standard scores include the mean and Standard deviation of the distribution.

Accepted Answer

A) True 
 B)False

Question 2

A z score converts the raw score to a form that takes into consideration its standing relative to the _____ and _____ of the entire distribution of scores.

Accepted Answer

A) median;standard deviation 
B) mean;standard deviation 
C) mean;variance 
D) median;interquartile range 
A) median;standard deviation 
B) mean;standard deviation 
C) mean;variance 
D) median;interquartile range

Question 3

A positive standard score indicates that the original score is greater than the standard deviation.

Accepted Answer

A) True 
 B)False

Question 4

In a normal distribution,approximately 95% of all scores fall between standard scores of _____.

Accepted Answer

A) -1 and +1 
B) 0 and +2 
C) -2 and +2 
D) -3 and +3 
A) -1 and +1 
B) 0 and +2 
C) -2 and +2 
D) -3 and +3

Question 5

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 6

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 7

Which of the following is a true property of a set of standard scores?

Accepted Answer

A) the mean is always one 
B) the standard deviation is always one 
C) they can only be positive numbers 
D) they can only be negative numbers 
A) the mean is always one 
B) the standard deviation is always one 
C) they can only be positive numbers 
D) they can only be negative numbers

Question 8

A _____ score in a _____ distribution is referred to as a z score.

Accepted Answer

A) raw;normal 
B) standard;normal 
C) raw;binomial 
D) standard;binomial 
A) raw;normal 
B) standard;normal 
C) raw;binomial 
D) standard;binomial

Question 9

In some normal distributions,the proportion of scores that occur above or below a given standard score is different.

Accepted Answer

A) True 
 B)False

Question 10

The scores below represent the results of an in-class quiz worth 10 points.
How many students scored a 7 on the exam?

Accepted Answer

A) 75% 
B) 60% 
C) 25% 
D) None of these 
A) 75% 
B) 60% 
C) 25% 
D) None of these

Question 11

A set of scores that is positively skewed will _____ after they have been converted to standard scores.

Accepted Answer

A) be normalized 
B) become negatively skewed 
C) remain positively skewed 
D) become platykurtic 
A) be normalized 
B) become negatively skewed 
C) remain positively skewed 
D) become platykurtic

Question 12

Scores that are normally distributed will have a mean that is equal to the median and mode.

Accepted Answer

A) True 
 B)False

Question 13

A standard score converts a score from its original,or raw form to a form that takes into consideration its standing relative to the _____ and _____ of the entire distribution of scores.

Accepted Answer

A) percentile;percentile rank 
B) percentile;standard deviation 
C) mean;percentile rank 
D) mean;standard deviation 
A) percentile;percentile rank 
B) percentile;standard deviation 
C) mean;percentile rank 
D) mean;standard deviation

Question 14

What proportion of scores are equal to a SD=1 in a normal distribution?

Accepted Answer

A) 68.26% 
B) 13.59% 
C) 34.13% 
D) None of these 
A) 68.26% 
B) 13.59% 
C) 34.13% 
D) None of these

Question 15

The scores below represent the test scores for a 10 point pop quiz in this class.
a.Fill out the entire frequency distribution and please answer the questions below.
 
b.What is the median or the 50th percentile?
c.What score represents the 80th percentile?

Accepted Answer

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

Given a normal distribution with a mean of 200 and a standard deviation of 30,what is the raw score corresponding to a z score of -2.0?

Accepted Answer

A) 140 
B) 260 
C) -6.73 
D) -60 
A) 140 
B) 260 
C) -6.73 
D) -60

Question 18

The percentage of scores in a distribution that occur at or below a given value is the _____ of that value.

Accepted Answer

A) relative percentage 
B) standard deviation 
C) percentile rank 
D) relative distribution 
A) relative percentage 
B) standard deviation 
C) percentile rank 
D) relative distribution

Question 19

The scores below represent the results of an in-class quiz worth 10 points.
What is the relative frequency associated with a score of 9?

Accepted Answer

A) .15 
B) .30 
C) .45 
D) 3 
A) .15 
B) .30 
C) .45 
D) 3

Question 20

Police officers must take an exam before they are hired in the department.Jack's has a T-score on the exam was 50 and John's T-score was 60.Who will most likely get hired?

Accepted Answer

A) Jack 
B) John 
C) Cannot be determined 
D) Both have an equal chance 
A) Jack 
B) John 
C) Cannot be determined 
D) Both have an equal chance

Standard scores include the mean and Standard deviation of the distribution.

A z score converts the raw score to a form that takes into consideration its standing relative to the _ and _ of the entire distribution of scores.

A positive standard score indicates that the original score is greater than the standard deviation.

In a normal distribution,approximately 95% of all scores fall between standard scores of _____.

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?

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

Which of the following is a true property of a set of standard scores?

A _ score in a _ distribution is referred to as a z score.

In some normal distributions,the proportion of scores that occur above or below a given standard score is different.

The scores below represent the results of an in-class quiz worth 10 points. How many students scored a 7 on the exam?

A set of scores that is positively skewed will _____ after they have been converted to standard scores.

Scores that are normally distributed will have a mean that is equal to the median and mode.

A standard score converts a score from its original,or raw form to a form that takes into consideration its standing relative to the _ and _ of the entire distribution of scores.

What proportion of scores are equal to a SD=1 in a normal distribution?

The scores below represent the test scores for a 10 point pop quiz in this class. a.Fill out the entire frequency distribution and please answer the questions below. b.What is the median or the 50^th percentile? c.What score represents the 80^th percentile?

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

Given a normal distribution with a mean of 200 and a standard deviation of 30,what is the raw score corresponding to a z score of -2.0?

The percentage of scores in a distribution that occur at or below a given value is the _____ of that value.

The scores below represent the results of an in-class quiz worth 10 points. What is the relative frequency associated with a score of 9?

Police officers must take an exam before they are hired in the department.Jack's has a T-score on the exam was 50 and John's T-score was 60.Who will most likely get hired?

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Pearson Correlation and Regression: Descriptive Aspects

Measures of Central Tendency and Variability

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 4: Percentiles percentile Ranks standard Scores and the Normal Distribution

Standard scores include the mean and Standard deviation of the distribution.

A z score converts the raw score to a form that takes into consideration its standing relative to the _____ and _____ of the entire distribution of scores.

A positive standard score indicates that the original score is greater than the standard deviation.

In a normal distribution,approximately 95% of all scores fall between standard scores of _____.

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?

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

Which of the following is a true property of a set of standard scores?

A _____ score in a _____ distribution is referred to as a z score.

In some normal distributions,the proportion of scores that occur above or below a given standard score is different.

The scores below represent the results of an in-class quiz worth 10 points. How many students scored a 7 on the exam?

A set of scores that is positively skewed will _____ after they have been converted to standard scores.

Scores that are normally distributed will have a mean that is equal to the median and mode.

A standard score converts a score from its original,or raw form to a form that takes into consideration its standing relative to the _____ and _____ of the entire distribution of scores.

What proportion of scores are equal to a SD=1 in a normal distribution?

The scores below represent the test scores for a 10 point pop quiz in this class. a.Fill out the entire frequency distribution and please answer the questions below. b.What is the median or the 50th percentile? c.What score represents the 80th percentile?

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

Given a normal distribution with a mean of 200 and a standard deviation of 30,what is the raw score corresponding to a z score of -2.0?

The percentage of scores in a distribution that occur at or below a given value is the _____ of that value.

The scores below represent the results of an in-class quiz worth 10 points. What is the relative frequency associated with a score of 9?

Police officers must take an exam before they are hired in the department.Jack's has a T-score on the exam was 50 and John's T-score was 60.Who will most likely get hired?

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Pearson Correlation and Regression: Descriptive Aspects

Measures of Central Tendency and Variability

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

A z score converts the raw score to a form that takes into consideration its standing relative to the _ and _ of the entire distribution of scores.

A _ score in a _ distribution is referred to as a z score.

A standard score converts a score from its original,or raw form to a form that takes into consideration its standing relative to the _ and _ of the entire distribution of scores.

The scores below represent the test scores for a 10 point pop quiz in this class. a.Fill out the entire frequency distribution and please answer the questions below. b.What is the median or the 50^th percentile? c.What score represents the 80^th percentile?

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