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The NIH Toolbox is a set of standardized digital assessments of cognition, motor function, sensation and emotion, designed for use with participants across the lifespan (ages 3 to 85+). It was initially funded through the NIH Blueprint for Neuroscience Research, and its performance tests run in the NIH Toolbox iPad app. This guide covers what it measures, how research teams use it, its limits and the alternatives.
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What is the NIH Toolbox?
The NIH Toolbox offers more than 80 measures for people ages 3 to 85+, giving different studies a common way to measure the same functions so that results can be compared. Investigators who add neurobehavioral endpoints to a study usually choose them during clinical trial protocol design and work under Good Clinical Practice standards.
What does the NIH Toolbox cover?
The platform provides digital assessments in four areas:
- Cognition: brief performance tests of cognitive function.
- Motor: performance measures of motor function.
- Sensation: measures of sensory function.
- Emotion: self-report measures for adults 18+ and ages 8 to 17, and parent report for ages 3 to 12.
The performance tests are available only in the NIH Toolbox iPad app. The HealthMeasures site states that batteries can be completed in about 30 minutes.
Who is behind the NIH Toolbox?
The measures were initially funded by the NIH Blueprint for Neuroscience Research and developed with multiple research institutions. The HealthMeasures site that describes the Toolbox is credited to Northwestern University.
How do research teams use it?
Teams choose the measures that match their study aims, administer them in the iPad app and record the results as study data. Licensing details for the performance tests are published on the NIH Toolbox website, so check them before budgeting. Studies using these endpoints should describe them in their clinical trial registration and reporting (see clinical trial registration and reporting compliance) and handle participant data consistently with informed consent.
Strengths and limits
- Common measurement: one set of measures across ages 3 to 85+ supports comparison between studies.
- Brief: batteries can be completed in about 30 minutes.
- Platform dependence: the performance tests are available only in the iPad app.
- Licensing: the performance tests have licensing terms that teams need to review on the NIH Toolbox website.
How does it compare with other instruments?
PROMIS, Neuro-QoL and the MoCA are sometimes considered for similar purposes. They differ in design and purpose from the Toolbox, so confirm each instrument’s scope on its own official site before choosing.
FAQ
What is the NIH Toolbox used for?
It is used to measure cognition, motor function, sensation and emotion in a standardized way across ages 3 to 85+.
What ages does it cover?
The NIH Toolbox site describes assessment of participants across the lifespan, ages 3 to 85+.
What device does it need?
The performance tests are available only in the NIH Toolbox iPad app.
Is it free?
The HealthMeasures page directs readers to the NIH Toolbox website for licensing details on the performance tests, so check there for current terms.
Sources
All sources checked November 7, 2026.
- NIH Toolbox. https://www.nihtoolbox.org/
- HealthMeasures. NIH Toolbox. https://www.healthmeasures.net/explore-measurement-systems/nih-toolbox
