Roadmap
| Question | Module Number | Module Name | Section/Course |
|---|---|---|---|
| What is this tutorial all about? |
|
Introduction | Using the Tutorial |
| What are the tutorial’s learning objectives? | Objectives | Using the Tutorial | |
| How does the tutorial work? | How the Tutorial Works | Using the Tutorial | |
| What knowledge or skills are needed? | Knowledge and Skills | Using the Tutorial | |
| What are the technical requirements and software required? | Technical and Software Requirements | Using the Tutorial | |
| What types of environmental chemical data are collected in NHANES? | 1 | Environmental Chemical Data Survey Orientation | |
| How can I find environmental and other information on the NHANES website? | 2 | Navigate NHANES Website | Environmental Chemical Data Survey Orientation |
| How are the environmental chemical data structured? | 3 | Environmental Chemical Data Structure & Contents | Environmental Chemical Data Survey Orientation |
| What do I need to know about the NHANES survey design and sample weighting before I start preparing my analytic dataset? | 4 | Overview of NHANES Survey Design and Weights | Environmental Chemical Data Survey Orientation |
| How do I identify and locate the variables I need for my analysis? | 5 | Locate Variables | Preparing an Environmental Chemical Analytic Dataset |
| How do I download the data and documentation files I need for my analysis? | 6 | Download Data | Preparing an Environmental Chemical Analytic Dataset |
| How do I create one dataset for my analysis if I’m using data from more than one file or more than one 2-year survey cycle? | 7 | Merge & Append Datasets | Preparing an Environmental Chemical Analytic Dataset |
| How do I adjust my dataset to accommodate missing data or outliers and how do I create new variables? | 8 | Review Data & Create New Variables | Preparing an Environmental Chemical Analytic Dataset |
| What tools can I use to describe my variables and their numeric values? | 9 | Format & Label Variables | Preparing an Environmental Chemical Analytic Dataset |
| How do I permanently save my dataset? | 10 | Save a Dataset | Preparing an Environmental Chemical Analytic Dataset |
| What are the statistical considerations particular to environmental chemical data that I need to be aware of before starting my analysis? | 11 | Important Analytic Considerations and Limitations Regarding Environmental Chemical Data Analyses | Critical Issues for Analysis of Environmental Chemical Data |
| What transformations might I need to perform on skewed environmental chemical data? | 12 | Data Normality and Transformations | Critical Issues for Analysis of Environmental Chemical Data |
| What kind of adjustments might I need to make on environmental chemical data? | 13 | Using Blood-lipid or Urine-creatinine Adjustments | Critical Issues for Analysis of Environmental Chemical Data |
| How do I estimate variance, calculate degrees of freedom, and/or analyze subgroups of environmental data? | 14 | Estimating variance, analyzing subgroups and calculating degrees of freedom for performing statistical tests and calculating confidence intervals | Environmental Chemical Data Analyses |
| How do I assess normality and estimate geometric means, percentiles, and proportions of environmental chemical data? | 15 | Assess Normality and Estimate Geometric Means, Percentiles and Proportions | Environmental Chemical Data Analyses |
| How can I test my hypotheses about environmental chemical data? | 16 | Test Hypotheses | Environmental Chemical Data Analyses |
Contact Us:
- National Center for Health Statistics
3311 Toledo Rd
Hyattsville, MD 20782 - 1 (800) 232-4636
- cdcinfo@cdc.gov
