The Wide Range Achievement Test, fourth edition (WRAT-4) comprises four subtests used to assess reading, reading comprehension, spelling, and mathematics computations. The WRAT has a long history dating back to more than 70 years ago, when it was developed as an adjunct to the Wechsler Bellevue Intelligence Test. The need for an adjunct to the Wechsler Scales was based on the idea that the Wechsler Scales did not measure skills in reading, spelling, and mathematics and that an individual’s skills in these domains may vary significantly from the Full Scale Intelligence Quotient outcomes. The WRAT now has a long history of use and continued popularity as a clinical and psychoeducational assessment instrument. First published in 1946, the test has been revised several times, most recently ...