Psychological diagnostics

Detail

Wechsler test (WAIS): measurement of intelligence:

One of the most famous and the best tools for the assessment of intelligence - Wechsler test. We use the legalized version of the test was conducted and certified specialist.

Assignment methods:

It is an ideal tool for:

- Identification of intellectually gifted individuals

- With guidance and professional suitability

- Assessment of the applicant for a managerial position

- Forecasting the success of work

Description of the test:

The survey is conducted in a separate room. All WAIS test is based on a hierarchical model of intelligence D. Wechsler diagnoses and general intelligence and its components - verbal and nonverbal intelligence. The verbal part includes six subtests and nonverbal - five.

Additional Information:

Category techniques    Cognitive tests

Age Range                   16 years

Testing time                 90-100 minutes

Form of                        Individual

Wechsler test (aka scale Wechsler, Wechsler intelligence test, WAIS, WISC) is one of the most popular tests of intelligence research in the West (especially in English-speaking countries). Author - David Wechsler (1896-1981), an American clinical psychologist and psychiatrist Jewish-Romanian origin; professor of clinical psychology at the Medical College of the University of New York.

In Russia, the test is also widely known, but its popularity is not so great, given the complexity of adaptation of intelligence tests in other languages ​​and relatively high requirements for the qualification psihodiagnosta.
Prehistory

In 1939 he released the initial version of the test, called "Wechsler-Bellevue Intelligence Scale", named Bellevue Hospital in New York (Bellevue Psychiatric Hospital), in which Wexler served as chief psychiatrist in the 1932-1967 biennium. In 1949 he developed Intelligence Scale for Children - "Wechsler Intelligence Scale for Children" (WISC). In 1955, Wexler has prepared a new version of the test for adults "Manual for the Wechsler Adult Intelligence Scale" (WAIS), and in 1967 - Intelligence Scale for preschool and primary school children "Wechsler Preschool and Primary Scale of Intelligence" (WPPSI).
Wechsler test

The test includes 11 subtests, verbal and nonverbal components of the scale:

Verbal subtests:

1. subtest of general awareness. Explores the stock of relatively simple information and knowledge. Offers 29 questions, evaluation - 1 point for a correct solution for each question.

2. The total comprehension subtest. Evaluates the completeness of understanding the meaning of the expressions, the ability to judgment, understanding social norms. The subject should give an answer about his alleged actions in this situation. Offers 14 questions, depending on the assessment of the accuracy of the answer - 0, 1 or 2 points.

3. Arithmetic subtest. Evaluates concentration, ease of manipulating numerical material. Subject must solve a series of verbal arithmetic problems. Assesses not only the accuracy of the answer, but also spent time on the decision.

4. establish similarities subtest. Assesses the ability to form concepts, classification, ordering, abstraction, comparison. The test must establish and characterize the community between a pair of concepts. Estimates range from 0 to 2 points, depending on the achieved level of generalization: concrete, functional, conceptual. In subtests offered 13 pairs of concepts.

5. repetition subtest digital series. Aims to study memory and attention, consists of two parts: the memorization and repetition of numbers in the forward and reverse.

6. Vocabulary subtest. Aimed at the study of verbal experience (understanding and ability to determine the content of words). It is proposed to explain the meaning of a number of words. Just a job 42 words: the first 10 - a very common, everyday use; The following 20 - medium difficulty; the third group consists of 12 words a high degree of complexity. Evaluation - from 0 to 2 points ...

Nonverbal subtests:

7. encryption subtest numbers. Examines the degree of assimilation of visual-motor skills. The aim is to write under each digit in the cell the corresponding symbol (character set is offered). Lead time is limited. Evaluation corresponds to the number of digits correctly encrypted.

8. subtest finding missing parts. Examines the characteristics of visual perception, observation, the ability to distinguish the essential details. The subject is placing 21 images, each of which is necessary to find any missing item or any discrepancy. Correct answer is worth one point. Run time - 20 seconds.

9. subtest cubes Kos. Aimed at studying sensorimotor coordination, ability to synthesis of a variety of parts. The subject is asked to reproduce the series of ten samples of drawings of colorful wooden blocks. Time is limited on each task. The rating depends on the accuracy and the time of job execution.

10. subtest sequence of pictures. Explores the ability to organize fragments in a logical whole, to understand the situation and anticipation of events. The Challenge offers eight series of pictures. In each series of images combined plot, according to which the subject must arrange them in sequence. Estimate depends on the accuracy and solution time.

11. subtest drawing figures. Aims to study the ability of synthesis of a variety of parts. The subject is asked in a particular sequence details the four figures ("man", "profile", "hand", "elephant") without indicating what these details should be written. The assessment takes into account the time and the right decision.

Currently used 3 different test D.Vekslera:

    Test WAIS (Wechsler Adult Intelligence Scale), intended for testing adults (16 to 64 years);
    test WISC (Wechsler Intelligence Scale for Children) - for testing of children and adolescents (from 6.5 to 16.5 years);
    test WPPSI (Wechsler Preschool and Primary Scale of Intelligence) for children from 4 to 6.5 years.

In Russia, the first two options adapted test.

The first adaptation of the WAIS was held in a mental Research Institute. Bekhterev (1956) in Leningrad. The most recent adaptation of the WAIS test performed by psychologists, St. Petersburg State University (1991).

WISC test adapted A.Yu.Panasyukom (1973) and published by the Institute of Hygiene of children and adolescents Ministry of Health of the USSR. In the embodiment A.Yu.Panasyuka replaced tasks that do not meet the conditions of our country. The changes affected, primarily verbal part - subtest "intelligent", "awareness", "Vocabulary" and, to a lesser extent, subtest "Similarity". The test was tested for reliability by comparing the results of the group of healthy children and groups oligophrenics (degree of retardation or mild mental retardation).

In 1992 Yu.Filimonenko and V.Timofeev released "A Guide to the research methodology of intelligence in children D.Vekslera." The authors describe the error correcting some Panasjuka, attempted to unify the work of the experimenter with the WAIS and WISC. Methodology issued by the State Enterprise "Imaton" (Saint - Petersburg). Test D.Vekslera adult WAIS is also available now "Imaton" and enters the retail and wholesale.

Another Russian-language adaptation of the WISC test taken under the supervision of department staff Yu.Z.Gilbuha psychodiagnosis Psychology Research Institute of Ukraine (Kiev) in 1992. Manual "Measurement of children's intelligence," ed. Gilbuha and the attached test WISC produced and distributed scientific-practical center "Psycho and differentiated instruction" (Kiev).