Short test for general basic quantities of information processing

from Wikipedia, the free encyclopedia
The following passages of this article need revision. Details should be given on the talk page. Please help to improve it , and then remove this flag.

The short test for general basic quantities of information processing (KAI), formerly the short test for general intelligence , is a psychometric performance test to determine the short human storage capacity (" working storage capacity "), which determines the quality and quantity of information processing . This short storage capacity forms the basis for fluid intelligence as the ability to think logically and, above all, to solve new, previously unknown problems (inductive and deductive thinking). The test was developed by Siegfried Lehrl . It is based on concepts from information psychology (e.g. Helmar Frank ) or the so-called Erlanger School of Information Psychology .

The short storage capacity is measured in bits . The 80 ± 29 bit distribution was determined for the normal adult population. In contrast to the intelligence level described by means of the intelligence quotient (IQ), it uses percentage changes in the working memory capacity (bits) to describe individual performance.

Determination of the working memory capacity

  • The information processing speed S, measured in bit / s, is determined by measuring the reading time of stochastically independent letters. The subjective information content of the presented letters is known.
  • The memory span , the present duration or the memory span D, measured in seconds, is determined as follows: Say the longest possible rows of digits such as "5 9 1 3 ..." and letters such as "unrz ...". The characters are presented in longer and longer lines at intervals of one second : first three characters, if they are repeated correctly, then 4, then 5, etc.
  • The working memory capacity C, measured in bits, is determined by the product of the above information processing speed and the memory span:

application

The KAI is standardized for people aged 18 and over. It is used for the quick recording of the individual working memory capacity. The result can be assigned to the fluid IQ using a table . It is also used to carry out progress examinations, for example to control influences such as diet, medication , changes in sensory ability, etc., on mental performance. The tests last about eight minutes the first time, and usually two to four minutes when repeated. Parallel forms of the test (equivalent form with other tasks) are available for repeating the application.

literature

Individual evidence

  1. ↑ Lehrl, S., Gallwitz, A., Blaha, L., Fischer, B (1991): Theory and measurement of mental performance with the short test KAI, Vless Verlag Ebersberg