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The Wechsler intelligence scales were originally developed from earlier intelligence scales by David Wechsler.David Wechsler, using the clinical and statistical skills he gained under Charles Spearman and as a World War I psychology examiner, crafted a series of intelligence tests.
The Wechsler Preschool and Primary Scale of Intelligence (WPPSI) is an intelligence test designed for children ages 2 years 6 months to 7 years 7 months developed by David Wechsler in 1967. It is a descendant of the earlier Wechsler Adult Intelligence Scale and the Wechsler Intelligence Scale for Children tests. Since its original publication ...
Language Development Survey (LDS) – A subsection of the CBCL/1½-5. This form is completed by the child's parent or guardian and assesses whether the child's vocabulary is delayed relative to norms. Caregiver-Teacher Report Form (C-TRF) – To be completed by the child's daycare provider or preschool teacher.
The test comprises 50 written words in British English which all have irregular spellings (e.g. "aisle"), so as to test the participant's vocabulary rather than their ability to apply regular pronunciation rules. The manual includes equations for converting NART scores to predicted IQ scores on the Wechsler Adult Intelligence Scale.
Intelligence quotient (IQ) tests include the Stanford–Binet, Raven's Progressive Matrices, the Wechsler Adult Intelligence Scale and the Kaufman Assessment Battery for Children. There are also psychometric tests that are not intended to measure intelligence itself but some closely related construct such as scholastic aptitude.
While applying the Bayley Scales of Infant Development (BSID-II), it was found that scales may lead to under-estimates of cognitive abilities in infants with Down syndrome. [7] Researchers excluded a number of items that implicated language, motor , attentional and social functioning from the original measures the modified form was administered ...
The WIDA Consortium (formerly World-Class Instructional Design and Assessment) is an educational consortium of state departments of education.Currently, 42 U.S. states and the District of Columbia participate in the WIDA Consortium, as well as the Northern Mariana Islands, the United States Virgin Islands, Palau, the Bureau of Indian Education, and the Department of Defense Education Activity.
CALP is used while performing in an academic setting. CALP is the ability to think in and use a language as a tool for learning. Cummins's and Collier's research suggest that K-12 students need 5 to 7 years to acquire CALP in the second language if the learner has native language literacy.