Unformatted Attachment Preview
Analyzing and Reporting Data - Overview
The purpose of this assignment is to give you experience conducting a basic secondary data
analysis using real-world surveillance data. Secondary data analysis is faster and cheaper to
conduct compared to primary data collection. However, there are also significant limitations. The
data were likely collected for a different purpose, and may not include the specific variables
required to answer your question. The sampling strategy might not be random and may not be
representative of your target population. These are examples of such limitations you should be
aware of as you work with existing data.
A key question is whether the data should determine the research question, or if the research
question should determine the type of data you use. In practice, you would want your research
question or hypothesis to determine the dataset you select. In this assignment, you are limited to
three datasets and may need to adjust your initial research question to accommodate one of the
three datasets. Avoid “mining” for significant results and stick to your initial research question as
much as possible. For this project, you will select one of the three example datasets to complete a
basic analysis and communicate your findings through a scientific poster presentation.
These steps will help you get started:
1. Review the websites for each of the three datasets listed below. Be sure to understand the
purpose of the survey, the sample used in the survey, and the main focus areas of each
survey. Review the documentation provided on the websites to get to know the story
behind the data and understand the population before reviewing the data.
2. Select the dataset that is most appropriate for your interest area.
3. Open the data in SPSS and get to know the data by reviewing the variables in “Variable
View” mode. This view will allow you to read the variable labels and response labels for
4. Based on your research interest and question, select variables that will help increase your
understanding about that topic.
5. Arrange the data as needed to organize and clean data, allowing you to focus on your
specific question. Remember to save your analytic data file as a new file in case you need
to go back to the original file. It is good practice to continually save new versions of the
data file as you work with and manipulate the data.
6. Follow the hypothesis testing steps to carry out your secondary data analysis.
For additional information on conducting a secondary data analysis, read the Topic Material,
“Conducting High-Value Secondary Dataset Analysis: An Introductory Guide and Resources.”
© 2021. Grand Canyon University. All Rights Reserved.
1. Demographic and Health Survey
The Demographic and Health Survey is a global monitoring survey administered by USAID.
The sample dataset is the model data set put together by USAID to explore DHS data. The
sample data is not from a specific country or year, but it gives you an idea of what can be
obtained from various countries through these datasets. The datasets are free and publically
available once you register with USAID to access the DHS data. For the purpose of this
assignment, treat this dataset as coming from a country of your choice. Access to the Model
Questionnaire, Recode Manual, and Data Video Tutorials, including a video on the sampling
strategy, is found at http://dhsprogram.com/data/model-datasets.cfm.
Note: You do not need to worry about weighting strategies for this assignment.
Use the http://dhsprogram.com/data/Using-DataSets-for-Analysis.cfm link to review the
“Step-by-Step Introduction to Analyzing DHS Data” for tips on how to access your own
dataset for future use and to see what resources are available to help you navigate the model
dataset for this assignment:
2. Youth Risk Behavior Surveillance System (YRBSS)
The Youth Risk Behavior Survey is a national survey monitoring health behaviors among
youth and young adults. It is administered by the Centers for Disease Control and Prevention.
The example dataset for this assignment comes from the National Survey (not combined)
dataset for 2015. General information about the survey is found at
Documentation and questionnaires can be found by accessing the “YRBSS Data and
Documentation: website at https://www.cdc.gov/healthyyouth/data/yrbs/data.htm.
Please read the 2015 YRBS Data User’s Guide, listed in the “National YRBS Datasets and
Documentation” page at https://www.cdc.gov/healthyyouth/data/yrbs/pdf/2015/2015_yrbsdata-users_guide_smy_combined.pdf.
The dataset includes calculated variables not found in the questionnaire that you might find
helpful in determining your analysis for this assignment. The crosswalk to match the
questions with the dataset can be found by viewing the “YRBS Questionnaire Content 1991-2017” found at
3. National Health Interview Survey (NHIS)
The NHIS began in 1957, and has been used to monitor the health of the United States ever
since. It is a household-level survey administered by the U.S. Census Bureau. Key topics in
the survey include doctor’s visits, medical conditions, health insurance, and health behaviors.
General information about the survey, including the sample design and data collection
procedures, can be found at https://www.cdc.gov/nchs/nhis/about_nhis.htm.
A Survey Description of the 2015 National Health Interview Survey can be found at
The sample dataset is from the 2015 adult survey at
Some of the variables have been deleted to decrease the size of the file, but none of the
observations have been dropped. Please review the “2015 National Health Interview Survey
(NHIS) Public Use Data Release” document at
Review the “2015 NHIS Public Use Variable Summary” at
After you identify a few variables you are interested in, review the complete description of
the variable in the variable layout document at
Checking the variable frequencies will help you determine the range of answers for each
variable of interest, including the number of missing observations. If the number missing is
high, consider using another variable. Variable frequencies can be found at
Data Resource Document
1. CDC WONDER
Explore the CDC WONDER website.
Explore the Gapminder website.
3. Behavioral Risk Factor Surveillance System
Explore the Behavioral Risk Factor Surveillance System, located on the CDC website.
Explore the PovcalNet: An Online Analysis Tool for Global Poverty Monitoring page of
The World Bank website.
5. Demographic and Health Survey Data
Explore the Demographic and Health Survey (DHS) data website.
6. Alcohol-Related Disease Impact Application
Explore the Alcohol-Related Disease Impact Application (ARDI) page of the CDC
7. Public Health Partners
Explore the Health Data Tools and Statistics page of the Public Health Partners website.
This site provides many public health data sources.
8. National Health Interview Survey
Explore the National Health Interview Survey page of the CDC website. Review the
© 2021. Grand Canyon University. All Rights Reserved.
9. Global School-Based Student Health Survey
Explore the purpose and methodology of the international Global School-Based Student
Health Survey, located on the World Health Organization (WHO) website.
10. Youth Risk Behavior Surveillance System
Explore the methods, data, and documentation of the Youth Risk Surveillance System,
located on the CDC website.
Title of Project
Presenter Name (contact information)
Grand Canyon University, Phoenix Arizona
Collage of Nursing and Health Care Professions
Introduction and Problem
To start using this template you first need to delete this content
and any other unwanted contents of this page. Keep the poster
title and the purple section headers.
The purple headers are used to identify and separate the main
topics of your presentation. The most commonly used headers in
poster presentations are provided, but you can change these
headers to fit your dissertation
It is highly recommended to use the largest images you have
access to for your poster. Avoid images downloaded from the
web and avoid copying and pasting images instead of using the
“Insert” command. To insert an image to your poster go to
INSERT>PICTURE>FROM FILE .
The Discussion section explain the results and states the
implications for public health practice or policy. Discuss any
potential limitations and strengths.
Move the header copies approximately to where you think they
need to be on the poster, so you can get a better sense of the
overall poster layout. It will help you organize your content.
You can now start adding your text. To add text use the text tool
to draw a text box starting from the left edge of a column to the
right edge and start typing in your text. You can also paste the text
you may have already copied from another source
Repeat the process throughout the poster as needed.
In the Introduction, describe the importance of the study in public
health, the problem it addresses, and the research question with
corresponding hypotheses for the study.
To import charts and graphs from Excel, Word or other
applications, go to EDIT>COPY, copy your chart and come
back to PowerPoint. Go to EDIT>PASTE and paste the chart
on the poster. You can scale your charts and tables
proportionally by holding down the Shift key and dragging
in or out one of the corners.
In the Results section, show the factual results of the analysis,
including any charts or graphs important to communicate the
results. Include descriptive statistics if they are helpful to
understand nuances of the sample relative to the population.
Conclusions and Future Research
In the conclusion, summarize the key findings and potential areas
for future research.
In the Methods sections, discuss the data source and sample, the
variables used in the analysis, the test statistic and corresponding
equations important to understand the analysis.