Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2013 Mar 12;80(11 Suppl 3):S87-92.
doi: 10.1212/WNL.0b013e3182872e70.

Norming plans for the NIH Toolbox

Jennifer L Beaumont  1 , Richard Havlik, Karon F Cook, Ron D Hays, Kathleen Wallner-Allen, Samuel P Korper, Jin-Shei Lai, Christine Nord, Nicholas Zill, Seung Choi, Kathleen J Yost, Vitali Ustsinovich, Pim Brouwers, Howard J Hoffman, Richard Gershon
Affiliations

Norming plans for the NIH Toolbox

Jennifer L Beaumont et al. Neurology. .

Abstract

Objective: The NIH Toolbox for Assessment of Neurological and Behavioral Function (NIH Toolbox) is a comprehensive battery of brief assessment tools. The purpose of this article is to describe plans to establish normative reference values for the NIH Toolbox measures.

Methods: A large sample will be obtained from the US population for the purpose of calculating normative values. The sample will be stratified by age (ages 3-85 years), sex, and language preference (English or Spanish) and have a total sample size of at least 4,205. The sample will include a minimum of 25-100 individuals in each targeted demographic and language subgroup.

Results: Norming methods will include poststratification adjustment calculated using iterative proportional fitting, also known as raking, so that the weighted sample will have the same distribution on key demographic variables as the US population described in the 2010 Census.

Conclusions: As with any set of norms, users should be mindful of the reference population and make conclusions consistent with the limitations of normative sampling, since it is not a probability-based sample. However, the NIH Toolbox norming study has been designed to minimize bias and maximize representativeness and precision of estimates. The availability of a "toolbox" of normed measures will be an important foundation for addressing critical research questions in neurologic and behavioral health.

PubMed Disclaimer

References

    1. Gershon RC, Cella D, Fox NA, Havlik RJ, Hendrie HC, Wagster MV. Assessment of neurological and behavioural function: the NIH Toolbox. Lancet Neurol 2010;9:138–139 - PubMed
    1. Rine RM, Roberts D, Corbin BA, et al. New portable tool to screen vestibular and visual function—National Institutes of Health Toolbox initiative. J Rehabil Res Dev. 2012;49(2):209–220 - PMC - PubMed
    1. Croker L, Algina J. Introduction to Classical and Modern Test Theory. New York: Holt, Rinehart and Winston; 1986
    1. Pedhazur E, Pedhazur-Schmelkin L. Measurement, Design, and Analysis: An Integrated Approach. Hillsdale: Lawrence Erlbaum Associates; 1991
    1. Census.gov American Community Survey: 2006–2008. Available at: http://www.census.gov/acs Accessed September 7, 2011.

Publication types