Reynolds Adaptable Intelligence Test (RAIT) NEW

Reynolds Adaptable Intelligence Test (RAIT)

Benefits

Assesses crystallized intelligence, fluid intelligence, and quantitative aptitude or intelligence

Ages

10 to 75 years

Admin Time

50 minutes for full battery; 30 minutes for crystallized and fluid subtests only

Format

Individual or group administration

Norms

Based on a sample of 2,124 individuals drawn from 39 states using a population-proportionate, stratified random sampling plan based on the 2010 U.S. Census

Publish Date

2014

Have a Question?

Call 800.648.8857

Kits

RAIT Introductory Kit

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Product #: PB-74

RAIT Introductory Kit

Includes 10 Reusable Item Booklets; 25 Answer Sheets; 25 Score Summary Forms; 2 Scoring Keys; Professional Manual and Fast Guide

$243.00

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Forms & Booklets

RAIT Reusable Item Booklet (Pack of 10)

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Product #: PB-74A

RAIT Reusable Item Booklet (Pack of 10)

$81.00

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RAIT Answer Sheet (Pack of 25)

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Product #: PB-74B

RAIT Answer Sheet (Pack of 25)

$27.00

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RAIT Score Summary Form (Pack of 25)

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Product #: PB-74C

RAIT Score Summary Form (Pack of 25)

$48.00

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Manuals & Resources

RAIT Scoring Key (Set of 2)

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Product #: PB-74D

RAIT Scoring Key (Set of 2)

$11.00

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RAIT Professional Manual and Fast Guide

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Product #: PB-74M

RAIT Professional Manual and Fast Guide

$102.00

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Reynolds Adaptable Intelligence Test (RAIT) NEW

Reynolds Adaptable Intelligence Test (RAIT)

BY CECIL R. REYNOLDS, PHD

The Reynolds Adaptable Intelligence Test (RAIT) is a rapid, reliable, and valid intelligence test designed for group or individual administration. It is composed of seven subtests that assess crystallized intelligence, fluid intelligence, and quantitative aptitude or intelligence.

Features and benefits

  • Allows examiners to measure intelligence across a wide age range
  • Requires minimal reading, motor, and visual–motor skills, reducing complications that can occur when manipulated objects (e.g., blocks) are used to assess intelligence
  • Yields a Crystallized Intelligence Index (CII), a Fluid Intelligence Index (FII), a Quantitative Intelligence Index (QII), a Total Intelligence Index (TII), and a Total Battery Intelligence Index (TBII)
  • Offers optional quantitative intelligence subtests, providing flexibility to the examiner
  • Includes a Score Summary Form, allowing you to track examinees’ scores over multiple administrations, calculate reliable change indexes, and interpret discrepancy
  • Helps determine a child’s educational placement; diagnose various forms of childhood psychopathology; support diagnoses of specific disorders when used with other evaluations; determine disability benefits under various state and federal programs; and measure aptitude in work settings
  • Provides a viable option for schools, juvenile and adult justice systems, clinical settings, and workplace settings because it can be administered in groups or individually

Technical information

  • Standardization sample of 2,124 individuals matching 2010 U.S. Census information
  • Subtests scaled to the T-score metric (i.e., M = 50; SD = 10); indexes scaled to the IQ metric (i.e., M = 100; SD = 15). Other derived scores include: z scores, normal curve equivalents, stanines, percentiles, and age equivalents for the younger ages
  • Scores obtained by individuals in several clinical groups support the validation of the RAIT as a measure of intelligence. These groups included individuals with intellectual disability, TBI, stroke, dementia, learning disability, hearing impairment, ADHD, and those considered gifted.
  • Gender and ethnic bias of the items were examined rigorously, using multiple methods based on item response theory as well as classical test theory.

RAIT Indexes

Total Battery Intelligence Index (TBII)

Provides a summary estimate of general intelligence, or g, derived from the administration of all seven subtests. It is calculated as the scaled sum of the T-scores for all seven subtests.

Total Intelligence Index (TII)

Provides an alternative summary estimate of general intelligence, or g, that does not take into account quantitative intelligence. It is calculated as the scaled sum of the T-scores for the five nonquantitative subtests, which scores also make up the CII and the FII

Crystallized Intelligence Index (CII)

Provides a summary estimate of crystallized intelligence (i.e., the application of knowledge to problem solving) assessed through verbal reasoning tasks that invoke inductive reasoning. It is calculated as the scaled sum of the T-scores for the three verbal subtests: General Knowledge, Odd Word Out, and Word Opposites.

Fluid Intelligence Index (FII)

Provides a summary index of fluid intelligence (i.e., problem solving in the absence of requisite factual knowledge) assessed through nonverbal reasoning tasks that tend to invoke deductive rather than inductive reasoning. It is calculated as the sum of the T-scores for the two nonverbal subtests: Sequences and Nonverbal Analogies.

Quantitative Intelligence Index (QII)

Asses both crystallized and fluid aspects of quantitative reasoning using two subtests: one heavily reliant on knowledge but still requiring reasoning to derive solutions to word problems as well as traditional numerical problems, and the other requiring only minimal knowledge of arithmetic but instead stipulating logic and deductive reasoning for numeric stimuli. It is calculated as the scaled sum of the T-scores for the two quantitative subtests: Quantitative Knowledge and Quantitative Reasoning.

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