Question 1

Questions relate to the following histogram:
  
-What is the median for the Placebo group?

Accepted Answer

A) 4 
B) 17 
C) 12 
D) 22 
A) 4 
B) 17 
C) 12 
D) 22 C

Question 2

What is the relationship between the variance and standard deviation?

Accepted Answer

A) The variance = standard deviation squared 
B) The standard deviation = the variance squared 
C) The variance = the standard deviation multiplied by the mean 
D) There is no straightforward relationship between the variance and standard deviation 
A) The variance = standard deviation squared 
B) The standard deviation = the variance squared 
C) The variance = the standard deviation multiplied by the mean 
D) There is no straightforward relationship between the variance and standard deviation A

Question 3

For the data presented in question 3 what are the mean, median and mode?

Accepted Answer

A) 17, 19, 18 
B) 16.36, 17, 19 
C) 10, 17, 21 
D) 17, 18, 19 
A) 17, 19, 18 
B) 16.36, 17, 19 
C) 10, 17, 21 
D) 17, 18, 19 B

Question 4

Questions relate to the following histogram:
  
-Which condition has the larger interquartile range?

Accepted Answer

A) Treatment 
B) Placebo 
C) The interquartile ranges are approximately equal 
D) We can't tell from the graph which has the larger interquartile range 
A) Treatment 
B) Placebo 
C) The interquartile ranges are approximately equal 
D) We can't tell from the graph which has the larger interquartile range

Question 5

Given the following set of data, which measure of central tendency would be most appropriate? 
15, 17, 19, 15, 13, 14, 10, 21, 18, 19, 19

Accepted Answer

A) Mode 
B) Median 
C) Mean 
D) Standard deviation 
A) Mode 
B) Median 
C) Mean 
D) Standard deviation

Question 6

Which of the following measures of central tendency is not appropriate when you have extreme scores in your sample data?

Accepted Answer

A) Mode 
B) Median 
C) Mean 
D) None of the above 
A) Mode 
B) Median 
C) Mean 
D) None of the above

Question 7

For the data given in question 3 what is the range?

Accepted Answer

A) 21 
B) 10 
C) 19 
D) 11 
A) 21 
B) 10 
C) 19 
D) 11

Question 8

Why do we square the deviation scores when calculating the variance?

Accepted Answer

A) Because squared deviation scores are in the original units of measurement of the sample 
B) Because adding all the deviation scores will always give a value of zero 
C) Because you cannot generate an average for negative scores 
A) Because squared deviation scores are in the original units of measurement of the sample 
B) Because adding all the deviation scores will always give a value of zero 
C) Because you cannot generate an average for negative scores

Question 9

Inferential statistics are used for:

Accepted Answer

A) generalising from sample data to populations 
B) describing the data in a sample 
C) graphing your data 
D) all of the above 
A) generalising from sample data to populations 
B) describing the data in a sample 
C) graphing your data 
D) all of the above

Question 10

Questions relate to the following histogram:
  
-Which row in the data file contains an outlier?

Accepted Answer

A) 4 
B) 5 
C) 7 
D) 8 
A) 4 
B) 5 
C) 7 
D) 8

Questions relate to the following histogram: -What is the median for the Placebo group?

What is the relationship between the variance and standard deviation?

For the data presented in question 3 what are the mean, median and mode?

Questions relate to the following histogram: -Which condition has the larger interquartile range?

Given the following set of data, which measure of central tendency would be most appropriate? 15, 17, 19, 15, 13, 14, 10, 21, 18, 19, 19

Which of the following measures of central tendency is not appropriate when you have extreme scores in your sample data?

For the data given in question 3 what is the range?

Why do we square the deviation scores when calculating the variance?

Inferential statistics are used for:

Questions relate to the following histogram: -Which row in the data file contains an outlier?

An Introduction to the Research Process

The Basis of Statistical Testing

Epidemiology

Introduction to Data Screening and Cleaning

Differences Between Two Groups

Differences Between Three or More Conditions

Testing Associations Between Categorical Variables

Measuring Agreement: Correlational Techniques

Linear Regression

Standard Multiple Regression

Logistic Regression

Interventions and Analysis of Change

Survival Analysis: an Introduction

Filters

Exam 2: Descriptive Statistics

Questions relate to the following histogram: -What is the median for the Placebo group?

What is the relationship between the variance and standard deviation?

For the data presented in question 3 what are the mean, median and mode?

Questions relate to the following histogram: -Which condition has the larger interquartile range?

Given the following set of data, which measure of central tendency would be most appropriate? 15, 17, 19, 15, 13, 14, 10, 21, 18, 19, 19

Which of the following measures of central tendency is not appropriate when you have extreme scores in your sample data?

For the data given in question 3 what is the range?

Why do we square the deviation scores when calculating the variance?

Inferential statistics are used for:

Questions relate to the following histogram: -Which row in the data file contains an outlier?

An Introduction to the Research Process

The Basis of Statistical Testing

Epidemiology

Introduction to Data Screening and Cleaning

Differences Between Two Groups

Differences Between Three or More Conditions

Testing Associations Between Categorical Variables

Measuring Agreement: Correlational Techniques

Linear Regression

Standard Multiple Regression

Logistic Regression

Interventions and Analysis of Change

Survival Analysis: an Introduction

Filters