RIT

Reynolds Interference Task

Details

Purpose

Measures complex processing speed

Authors

Cecil. R. Reynolds, PhD, and Randy W. Kamphaus, PhD

Administration Formats

Print

Additional Details

Measure Complex Processing Speed to Determine Effects of TBI, Strokes, Dementia, and Concussions

The RIT is a Stroop-style test of complex processing speed that measures general neuropsychological integrity. It adds a layer of cognitive processing tasks—inhibition and attention-shifting—to simple tasks, which makes them more complex and thus more indicative of cognitive flexibility and selective attention.

The RIT gives examiners full confidence in making accurate comparisons of performance using highly reliable scores derived from a common sample—it’s the best of all possible psychometric worlds.
—Cecil R. Reynolds, PhD, RIT coauthor
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The mental effort required for the RIT allows clinicians to measure the effects of TBI, stroke, brain insult or injury, dementia, Alzheimer's disease, and brain tumors. Alternately, the RIT can be used as a measure of attention and complex processing speed deficits and as a rapid means of measuring recovery from concussion.

Features and benefits

  • Features two subtests that combine to provide a Total Correct Index, which offers greater coverage, enhanced consistency, and more reliability than a single subtest.
  • Includes reliable change scores and discrepancy scores with the Reynolds Intellectual Assessment Scales, Second Edition (RIAS-2), a trusted measure of intelligence.
  • Covers a wide age range (6-94 years) in one test.
  • Requires minimal motor demand.
  • Takes just five minutes to administer and score.
  • Administer with paper and pencil.
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    Photo of Reynolds Interference Task ™
    Age Range 6 years to 94 years
    Admin Time 5 minutes to administer and score
    Qualification Level C

    Shop by Kit

    RIT Introductory Kit

    11154-KT
    $136.00
    11154-KT
    What's Included

    RIT In-Person e-Admin Introductory Kit

    For in-person administration via tablet.

    Learn more about e-Manuals and e-Stimulus Books. Each are limited to a single user and device.

    11657-DK
    $136.00
    11657-DK
    What's Included

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    FAQs

    What is the technical information for the RIT?

    Test structure

    • Comprises two timed subtests—Object Interference (OI) and Color Interference (CI), which combine to yield a Total Correct Index (TCI).
    • The OI subtest features a grid of pictures of common animals labeled with the name of another animal (e.g., a bird labeled as a horse). The examinee must name the animal under the word, ignoring the label on the picture.
    • The CI subtest features a grid of color words that are printed in a different color ink (e.g., the word red is printed in blue ink). Examinees are asked to name the color of the ink, not the color word.

    Scoring and reporting

    • Score in 5 minutes.
    • The two timed subtests (OI and CI) combine to yield a Total Correct Index (TCI).
    • Two subtests offer greater coverage, enhanced consistency, and more reliability than a single subtest.
    • Includes reliable change scores and discrepancy scores with the Reynolds Intellectual Assessment Scales, Second Edition (RIAS-2).

    Technical information

    • Standardized on a normative sample of 1,824 participants from 32 states representative of 2012 U.S. Census statistics. 
    • Conormed with the Reynolds Intellectual Assessment Scales, Second Edition (RIAS-2), which gives examiners confidence when making comparisons of performance.
    • Data were gathered from 12 clinical groups, including stroke, dementia, intellectual disability, traumatic brain injury, learning disability, ADHD, gifted, and hearing impaired. 

    Reliability, validity, and norms

    • Standardized on a normative sample of 1,824 participants from 32 states representative of the 2012 U.S. Census.
    • Conormed with the RIAS-2 and the Reynolds Intellectual Screening Test, Second Edition (RIST-2), which gives examiners confidence when making comparisons of performance.
    • Data were gathered from 12 clinical groups, including stroke, dementia, intellectual disability, traumatic brain injury, learning disability, attention-deficit/hyperactivity disorder, gifted, and hearing impaired.

    How do I choose between the RIAS™-2, the RIST™-2, and the RIT™?