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Continuous NHANES Web Tutorial

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Survey Design Factors

The Survey Design Factors course includes three modules:

    Module 10. Sample Design
    Module 11. Weighting
    Module 12. Variance Estimation

These three modules provide an overview of the design features for the Continuous NHANES samples, as well as how to correctly account for these design features in analyses.

The Sample Design module describes the complex sampling design of NHANES, which includes multi-stage, unequal probability, and cluster sampling methods. This module also explains how to specify sampling parameters in an analysis.  The Weighting module describes how NHANES weights are calculated to take into account survey nonreponse, oversampling, post-stratification, and sampling error. More importantly, this module teaches how to select the correct weights for an analysis. The Variance Estimation module introduces methods to calculate variance estimates and degrees of freedom.

These modules will provide analysts who are new to NHANES with an in-depth knowledge of the survey™s sampling and weighting procedures and basic tools for calculating variance estimates.

If you are an experienced analyst who only needs specific information to help you complete an analysis on your own, you can pick and choose topics of interest from the navigation bar to the left, or from the Tutorial A-Z Index. You may also go to the Sample Code and Datasets page to download and modify sample programs and datasets for your own use.

The computer software, knowledge, and skills requirements are listed for your convenience on the Software & Technical Requirements page. The Tech Tips page can help you troubleshoot if you run into technical difficulties. Before beginning the course, please see the Jump Start Guide for more information about how to use the tutorial and its features.

Credit Statements

For CME : The Centers for Disease Control and Prevention is accredited by the
Accreditation Council for Continuing Medical Education (ACCME®) to provide continuing
medical education for physicians.

 The Centers for Disease Control and Prevention designates this educational activity for a
maximum of 2.0 AMA PRA Category 1 Credits™. Physicians should only claim credit
commensurate with the extent of their participation in the activity.

Continuing Education designated for Non-Physicians: Non-physicians may obtain a certificate of participation. 

For CNE: The Centers for Disease Control and Prevention is accredited as a provider of
Continuing Nursing Education by the American Nurses Credentialing Center's
Commission on Accreditation.

This activity provides 2.0 contact hours.

For IACET CEU: The CDC has been approved as an Authorized Provider by the International Association for Continuing Education and Training (IACET), 1760 Old Meadow Road, Suite 500, McLean, VA 22102. The CDC is authorized by IACET to offer 0.2 IACET CEU's for this program.

Estimated time to complete:: 2-3 hours

Release Date: 2/7/2007
Renewal Date: 2/7/2010
Expiration Date: 2/7/2012

Objectives: See Objectives page.

Authors: See Authors page.

 

Course Registration and Quizzes

Go to the CDC/ATSDR Training and Continuing Education Online at http://www2a.cdc.gov/TCEOnline. If you have not registered as a participant, click on New Participant to create a user ID and password; otherwise click on Participant Login and login.

Once logged on to the CDC/ATSDR Training and Continuing Education Online website, you will be on the Participant Services page.  Click on Search and Register. Enter the course number WB1161 or a keyword under Keyword Search. Click on View.

Click on the course title NHANES Web Tutorial - Survey Orientation. Select the type of Continuing Education you would like to receive and then Submit. Three demographic questions will come up. Complete the questions and then Submit. A message will come up thanking you for registering for the course. After completing the course you will need to take the test and complete a course evaluation at the end to receive Continuing Education.  A record of your course completion will be located in the Transcript and Certificate section of the training website.

If you have any questions or problems with the CDC/ATSDR Training and Continuing Education Online website please contact:

CDC/ATSDR Training and Continuing Education Online
1-800-41TRAIN or 404-639-12922
Email at ce@cdc.gov

 

Page Last Modified: November 16, 2009

Additional Resources

National Center for Health Statistics
3311 Toledo Road
Hyattsville, MD 20782
Phone: 1-866-441-NCHS (6247)
For data inquiries, use
nchsquery@cdc.gov

 

Problems or comments about the Tutorial?
Email the Tutorial Team: NHANESWebTutorial@cdc.gov

Safer Healthier People

Centers for Disease Control and Prevention, 1600 Clifton Rd, Atlanta, GA 30333, U.S.A
Tel: (404) 639-3311 / Public Inquiries: (404) 639-3534 / (800) 311-3435