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Slosson educational tests and assessments for teachers, educators and other professionals, in schools, hospitals, and corrections.  Used to test students in regular and special education, remedial reading and math, intelligence, visual motor, speech language for school screening and forms for teachers to evaluation students' mental abilities.


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Main Category : R / (RAN/RAS) Rapid Auto Naming & Rapid Alternating Stimulant Tests Kit
(RAN/RAS-1) Complete includes Examiner's Manual, 50 Examiners Record Forms, a set of 5 Card Packs

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Price: $187.00
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Identify students who may be at risk for reading failure
Rapid Automatized Naming and Rapid Alternating Stimulus Tests (RAN/RAS)
Maryanne Wolf, Martha Bridge Denckla

Ages: 5.0 through 18.11
Administration: 5 to 10 minutes. Individual


Considered the “gold standard” of naming tests, these tests reflect three decades of clinical evidence and research across all parts of the United States, Canada, Europe, Israel, Asia, and Australia that have examined the relation between processing speed and reading. They are an important addition to any prediction battery or diagnostic assessment of oral and written language from age 5 to adulthood. On all tests, the examinee is asked to name each stimulus item as quickly as possible without making any mistakes. Scores are based on the amount of time required to name all the stimulus items on each test.

The RAN and RAS Tests are individually administered measures designed to estimate an individual’s ability to recognize a visual symbol – such as a letter or color – and name it accurately and rapidly. The tests consist of rapid automatized naming tests and two rapid alternating stimulus tests. The Letters, Numbers, Colors, and Objects tests comprise five high-frequency stimuli that are randomly repeated 10 times in an array of five rows, for a total of 50 stimulus items. The 2 – Set Letters and Numbers and 3 – Set Letters, Numbers, and Colors tests are composed of 10 and 15, respectively, high-frequency stimuli that are randomly repeated in an array of five rows, for a total of 50 stimulus items.

The tests were normed on 1,461 individuals in 26 states and raw scores are converted to percentiles, standard scores, and age and grade equivalents. The group of six tests usually takes about 5 to 10 minutes to administer, depending on the age, language status, and reading ability of the child. Stimulus items are appropriate for use with kindergarten students through high school students.

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