David Wechsler

Picture of David Wechsler

Date of Birth: 01/12/1896

Age: 85

Place of birth: Lespedi

Citizenship: United States


Educated at the College of New York City (MA, 1916) and Columbia University (Ph.D., 1925). From 1932 to 1967 he worked as the chief psychologist at Bellevue Psychiatric Hospital in New York City. From 1942 to 1970 he was clinical professor of College of Medicine in New York City, since 1970 - an honorary professor.

If used in his time, intelligence tests were developed originally for the children, and were transferred to the adult after adding jobs more difficult, but the same type, then Wexler created a test - the scale of the Wechsler-Bellevue - especially for adults. the first version of the scale ( "Wechsler-Bellevue Intelligence Scale") was published By 1939, which soon became the most widespread in the United States. In this test, a variety of techniques have been combined, most of which are widely used in the past, but Wexler suggested procedure for their rigid standards, ie imposed restrictions on time and determined performance standards - the average value of the test indicator for performing mental tasks for all members of this age group.

Unlike test Stanford-Binet, reference in this test are not grouped by age levels and combined in subtests and arranged in order of increasing complexity. This Wexler combined into a single set of tests of verbal and practical intelligence with a separate calculation for verbal IQ subtests and subtests action. This Wexler gave a definition of intelligence as a global ability to act in a reasonable, rational thought and good to deal with life`s circumstances.

In 1955, Wexler has prepared a new version of the test for adults ( "Manual for the Wechsler Adult Intelligence Scale", NY) - WAIS, in 1949, Wexler has developed a test version for children ( "Wechsler Intelligence Scale for Children") - WISC, and in 1967. - Intelligence scale for preschool and primary school children ( "Wechsler Preschool and Primary Scale of Intelligence") - WPPSI.

He offered to use their techniques in a psychiatric clinic, for the differential diagnosis based on the fact that intelligence can be selectively destroyed with brain injuries and mental disorders. Created as a battery of tests to assess memory ( "Standaized memory scale for clinical use", "J. Psychol.", 1945, 19, 87-95).

He conducted research of age changes of intelligence and memory. He worked on the creation of their own modification of the "lie detector".