The Wechsler Test History

According to the technical manual, Test Validity can be defined as the degree to which empirical evidence and theory support the use and interpretation of the test (Schrank & McGrew, 2001). The main constructs and measures attained by the WJ III are resultant from the Cattell Horn Carrol theory of the cognitive abilities (CHC theory). Content validity, which is how well a test measures the behaviors it was intended to measure, was accompanied through requirement of a master test and cluster-content revision blueprint. Each cluster of the Woodcock- Johnson COG battery was created to heighted the range of validity measurement (Schrank & McGrew, 2001). This was done by providing two qualitatively separate narrow abilities included in the broad ability, as defined by CHC theory. The WJ III ACH was also knowledgeable by CHC theory. In order to strengthen

One would assume that intelligence testing in the United States began with psychiatrists or government officials. It was actually a football coach who coached the University of South California at the start of the century. He

     Since the development of the intelligence quotient, schools in every part of the world have been using the IQ test to categorize millions of students into three groups. These three groups, which are the gifted, the average, and the retarded, are falsifications that perpetuate in our world culture and cause many gifted students to be deemed retarded and vice a versa. Why then is the IQ test so heavily relied on in our school systems? For schools the answer is simple, an I.Q. test is a reliable predictor of a students later performance in academics. This answer is relatively true, but where the I.Q. test falls extremely short is with testing the multiple

This paper discusses the pros and cons of the Wechsler Adult Intelligence Scale (WAIS-III). First, important definitional, theoretical issues, including the nature of intelligence, a brief history, and pros and cons are discussed. Next, the development, reliability, validity, and assets and limitations of the WAIS-III are examined. This is followed by discussion of the meaning of IQ scores, use of successive level interpretation and cautions and guidelines for administration. Last, subtests, assessing special population groups, short forms, profile forms, and what a

What is the name, acronym, and publication date of the assessment? The name of the assessment is the Wechsler Individual Achievement Test, Third Edition. The acronym is WIAT-III, and the date of publication is 2009.

Verbal score: represented scores on subtests of vocabulary, comprehension, knowledge of general information and other verbal tasks

Hi Brandon, I want to talk to you about the two psychological tests that I would like to conduct, which are called the WAIS-IV and the MMPI-2. The WAIS-IV is used to measure intelligence, and since you are here because you are having considerable difficulty with your classes, I believe this test is appropriate. The WAIS-IV uses several categories, called indexes, to simplify different aspects of

As stated by Cohen et al. (2013), improvements – for the WAIS-IV – “include more explicit administration instructions as well as the expanded use of demonstration and sample items” (p. 323). However, the specific improvements between the WAIS-IV over the WAIS-III (and prior editions) is the enlargement of images for subsections (e.g., Picture Completion,

Testing has been used for centuries in many different ways, not just to test student intelligence levels. According to an article written in Time, the earliest form of a standardized test comes from China where government leaders would be tested on their knowledge of Confucius and poetry. The article continues with the inclusion of testing during the Industrial Revolution. The testing during this period took children who were not in school and measured their knowledge of subjects that students in schools learned. As time went on, more and more advances came to the testing scene. New products included a revised version of the test, called the Stanford-Binet Intelligence Test, and professionals developed the test scanner by 1936. These inventions improved the time necessary to receive results from an IQ test. Today, tests, like the

Binet was involved in creating one of the more recent forms of intelligence test, referred to as the Stanford-Binet Intelligence Scale. A similar test is that formulated by Wechsler (Neisser et al. 1996). These led to the measure of IQ (“intelligence quotient”) being founded, where an individual’s “mental age is divided by their chronological age and multiplied by 100” (Gardner 2006, p. 3). The tests measure intelligence through verbal and non-verbal tasks, assessing scholastic aptitude, school achievement and specific abilities (Neisser et al. 1996, p. 78).

In the early 1900s, IQ test was originally developed by the French psychologist, Alfred Binet.

In 1904, a French psychologist (Alfred Binet) created the first intelligence test in order to help the French Ministry of Education segregate children that may have difficulty learning in a regular classroom. At that time, he did not know that his test would be the basis for IQ tests administered over 100 years later. He has a Stanford University psychologist, Lewis Terman, to thank for expanding his work and creating the Stanford-Binet intelligence test that took root in the United States in 1916 and is still popular today. However, along with its popularity came criticism. Critics see the current version of the Stanford - Binet test and other intelligence tests, despite attempts to make them culturally fair, as limiting to individuals who are not from the major social norm. They claim that cultural bias in test questions is why certain races do not perform as well as others on the test.

Wechsler Intelligence Scale for Children (WISC-IV; Wechsler, 1949). This seminal intelligence scale assesses a child 's general intellectual ability across four domains, producing four corresponding index scores: (1) the Verbal Comprehension Index (VCI), (2) the Visual Spatial Index (VSI), (3) the Working Memory Index (WMI), and finally (4) the Processing Speed Index (PSI). The VCI measures verbal concept formation, specifically assessing children 's ability to listen to a question, draw upon learned information from both formal and informal education, reason through an answer, and express their thoughts aloud. An example item from this index is similarities, vocabulary, and comprehension. Next, the VSI measures non-verbal and fluid reasoning and assesses children 's ability to examine a problem, draw upon visual-motor and visual-spatial skills, organize their thoughts, create solutions, and then test them. An example item from this index is solving a 3D puzzle. The WMI measures working memory and assesses children 's ability to memorize new information, hold it in short-term memory, concentrate, and manipulate that information to produce some result or reasoning processes; an example item would be letter-number sequencing. This measure is particularly important for higher-order thinking, learning, and achievement. Finally, the PSI measures the speed of information processing and assesses children 's abilities to focus attention and quickly scan, discriminate between, and

In 1905 Binet and Simon tested their measurements on another fifty children whom their school teachers considered to be of average intelligence for their ages. This test was to enable Binet to examine the levels of intelligent behaviors between children of the same age. Some of the tests on Binets scale were very simple, including asking a child to follow the direction of movement of a lighted match, and then maybe slightly harder was to repeat back a three digit sequence of numbers or sentences. There were a few harder tests involved which would require a child to make a sentence out of maybe three or four words, or to reproduce a drawing from memory.

Woodcock Johnson Tests of Cognitive Abilities Third Edition It’s comprehensive battery is strong and well normed. Client can pick and choose the subtests. Limitations: This is an expensive test to administer and it is cumbersome to get full picture of client in one hour with this tool.