WISC-IV (IQ test)
The WISC-IV (Wechsler Intelligence Scale for Children- Fourth Edition (WISC-IV) Australian Standard) is used to assess the general thinking and reasoning skills of children aged 6 years to 16 years.
Test results include a Full Scale IQ score as well as age-equivalent rankings and scores for Verbal Comprehension, Perceptual Reasoning, Working Memory and Processing Speed. The WISC-IV is often a prerequisite for admission into gifted and talented programs, such as Gerric (UNSW) and Acceleration classes in the school setting.
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More about This Assessment:
This psychometric test has been frequently updated to incorporate 60 years of research and advances in the field of intellectual assessment, as well as to reflect the practical and clinical needs of contemporary society.
The WISC-IV has 10 core subtest and five supplemental subtests. Similarities, Vocabulary and Comprehension are the three core subtests that comprise the Verbal Comprehension score. The three core Perceptual Reasoning subtests are Block Design, Picture Concepts and Matrix Reasoning. Digit Span and Letter-Number Sequencing are the two core Working memory subtests, and Coding and Symbol Search are the two core Processing Speed subtests. All 10 core subtests comprising the four indices contribute equally to the Full Scale Intelligence Quotient or IQ score.
The Verbal Comprehension score indicates how well a child did on tasks that required him to listen to questions and give spoken answers to them. These tasks evaluate skills in understanding verbal information, thinking and reasoning with words, and expressing thoughts as words.
The Perceptual Reasoning score indicates how well a child did on tasks that required him to examine and think about things such as designs and pictures and to solve problems without using words. These tasks evaluate skills in solving nonverbal problems, sometimes using eye-hand coordination, and working quickly and efficiently with visual information.
The Working Memory score indicates how well a child did on tasks requiring him to learn and retain information in memory while utilizing the learned information to complete a task. These tasks measure skills in attention, concentration, and mental reasoning. This skill is closely related to learning and achievement.
The Processing Speed score indicates how well a child did on tasks requiring him to quickly scan symbols and make judgments about them. These tasks measure skills in speed of mental problem-solving, attention, and eye-hand coordination. This skill may be important to development in reading, and ability to think quickly in general.
The Full Scale IQ score is derived from the combination of the Verbal Comprehension, Perceptual Reasoning, Working Memory, and Processing Speed scores. The WISC–IV Full Scale score is one way to view child’s overall thinking and reasoning skills.
