Question 1

Creating a codebook helps:

Accepted Answer

A)  assign numerical values to responses. 
B)  ensure consistency when coding responses. 
C)  researchers conduct data analysis. 
D)  All of these are correct. 
A)  assign numerical values to responses. 
B)  ensure consistency when coding responses. 
C)  researchers conduct data analysis. 
D)  All of these are correct. D

Question 2

Electronic data platforms, like Excel or SPSS, cannot help you:

Accepted Answer

A)  check for data outliers. 
B)  conduct data analysis. 
C)  avoid coding errors. 
D)  improve statistical power. 
A)  check for data outliers. 
B)  conduct data analysis. 
C)  avoid coding errors. 
D)  improve statistical power. C

Question 3

It is okay to change the value of an out-of-range data value if the new value does not inflate the mean.

Accepted Answer

A) True 
 B)False  True

Question 4

Imagine you're analyzing the first wave of data from your study, and you notice a set of questions are consistently unanswered by participants. This is due to:

Accepted Answer

A)  systematic missingness. 
B)  questions that are particularly sensitive. 
C)  a programming flaw. 
D)  All of these are correct. 
A)  systematic missingness. 
B)  questions that are particularly sensitive. 
C)  a programming flaw. 
D)  All of these are correct.

Question 5

Assume you have gathered six participants, ages 53, 62, 65, 57, 61, and 68, and calculated the age that divides the data set into two equal halves. What did you find?

Accepted Answer

A)  Central tendency 
B)  Dispersion 
C)  Mean 
D)  Median 
A)  Central tendency 
B)  Dispersion 
C)  Mean 
D)  Median

Question 6

Assume you're analyzing the age distribution of your study and notice that a large amount of your participants are ages 40-49. Furthermore, there's less of each age group as they get older. What are you observing?

Accepted Answer

A)  Positive skew 
B)  Negative skew 
C)  Normal distribution 
D)  None of these is correct. 
A)  Positive skew 
B)  Negative skew 
C)  Normal distribution 
D)  None of these is correct.

Question 7

__________ standard deviations from the mean will provide you with a 95% confidence interval on a normal distribution curve.

Accepted Answer

A)  Three 
B)  Two 
C)  One 
D)  Zero 
A)  Three 
B)  Two 
C)  One 
D)  Zero

Question 8

You are a research assistant for a new study and have just received your first data set. What is the first thing you should do with the data?

Accepted Answer

A)  Start running basic statistical analyses 
B)  Save a copy of the file in case it's damaged or lost later 
C)  Begin cleaning for outliers and missing values 
D)  Code responses 
A)  Start running basic statistical analyses 
B)  Save a copy of the file in case it's damaged or lost later 
C)  Begin cleaning for outliers and missing values 
D)  Code responses

Question 9

The first step of categorical data analysis is to describe the data in terms of their central tendency and variability.

Accepted Answer

A) True 
 B)False

Question 10

If you wanted to create a chart recording people's age in intervals, such as 40-49, 50-59, 60-69, and 70+, what kind of data are you trying to depict?

Accepted Answer

A)  Ordinal data 
B)  Categorical data 
C)  Scaled data 
D)  Continuous data 
A)  Ordinal data 
B)  Categorical data 
C)  Scaled data 
D)  Continuous data

Creating a codebook helps:

Electronic data platforms, like Excel or SPSS, cannot help you:

It is okay to change the value of an out-of-range data value if the new value does not inflate the mean.

Imagine you're analyzing the first wave of data from your study, and you notice a set of questions are consistently unanswered by participants. This is due to:

Assume you have gathered six participants, ages 53, 62, 65, 57, 61, and 68, and calculated the age that divides the data set into two equal halves. What did you find?

Assume you're analyzing the age distribution of your study and notice that a large amount of your participants are ages 40-49. Furthermore, there's less of each age group as they get older. What are you observing?

__________ standard deviations from the mean will provide you with a 95% confidence interval on a normal distribution curve.

You are a research assistant for a new study and have just received your first data set. What is the first thing you should do with the data?

The first step of categorical data analysis is to describe the data in terms of their central tendency and variability.

If you wanted to create a chart recording people's age in intervals, such as 40-49, 50-59, 60-69, and 70+, what kind of data are you trying to depict?

Shaping Public Health Through Research and Practice

Framing the Research Question

Ethical Standards and Practice for Public Health Research

Community-Based Participatory Research

Qualitative Research Methods for Public Health

Observational Research Designs

Experimental Research Designs

Quasi-Experimental Designs for Public Health

Defining the Study Population

Sampling Techniques

Measurement

Parametric Data Analysis

Non-Parametric Data Analysis

Disseminating Findings and Informing New Research

Filters

Exam 12: Data Management and Cleaning

Creating a codebook helps:

Electronic data platforms, like Excel or SPSS, cannot help you:

It is okay to change the value of an out-of-range data value if the new value does not inflate the mean.

Imagine you're analyzing the first wave of data from your study, and you notice a set of questions are consistently unanswered by participants. This is due to:

Assume you have gathered six participants, ages 53, 62, 65, 57, 61, and 68, and calculated the age that divides the data set into two equal halves. What did you find?

Assume you're analyzing the age distribution of your study and notice that a large amount of your participants are ages 40-49. Furthermore, there's less of each age group as they get older. What are you observing?

__________ standard deviations from the mean will provide you with a 95% confidence interval on a normal distribution curve.

You are a research assistant for a new study and have just received your first data set. What is the first thing you should do with the data?

The first step of categorical data analysis is to describe the data in terms of their central tendency and variability.

If you wanted to create a chart recording people's age in intervals, such as 40-49, 50-59, 60-69, and 70+, what kind of data are you trying to depict?

Shaping Public Health Through Research and Practice

Framing the Research Question

Ethical Standards and Practice for Public Health Research

Community-Based Participatory Research

Qualitative Research Methods for Public Health

Observational Research Designs

Experimental Research Designs

Quasi-Experimental Designs for Public Health

Defining the Study Population

Sampling Techniques

Measurement

Parametric Data Analysis

Non-Parametric Data Analysis

Disseminating Findings and Informing New Research

Filters