The Wechsler Individual Achievement Test assesses achievement in students in grades K-12, with subtests in reading, mathematics reasoning, spelling, reading comprehension, numerical operations, listening comprehension, oral expression, and written expression. The test was developed to assist in identification of students with learning…

This paper presents the development of the Arabic Picture Vocabulary Test (APVT), derived from the Peabody Picture Vocabulary Test-Revised, for use in assessing the aural-vocabulary of newly arrived limited English proficiency children, from kindergarten through grade three, whose first language is Arabic. The APVT, an individually administered…

Computer adaptive testing systems are feasible for certification and licensure testing. This is in part due to the availability of extensive yet inexpensive computers. Modern item response theory, combined with computerized adaptive testing, yields a powerful new method of testing which provides greater accuracy and efficiency and less boredom for…