Leiter International Performance Scale
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Social Processes: Methodology · Types of test
Leiter International Performance Scale or simply Leiter is a intelligence test for children and adolescents, with norms ranging from 2 to 20 years. For all ages, it yields an intelligence quotinent (IQ) and a measure of logical ability.
Leiter devised an experimental edition of the test in 1929 to asses the intelligence of those with hearing or speech impairment and with non English speaking examinees. A remarkable feature of the Leiter is that it can be administered completely without the use of oral language, not even for instructions. Without any verbal subtests, Leiter only measures nonverbal intelligence. Because of the exclusion of language, it claims to be more accurate when testing children who for some reason have language deficits. This includes children with any of these features: Non native speaking, autism, traumatic brain injury, speech impairment, hearing problem.
The latest version of Leiter is called Leiter-R (Revised). It has an age range of 2 years to 20 years and 11 months. Not all subtests are administered to every child.
The Leiter contains 20 subtests organized into four domains:
- Reasoning
- Visualization
- Memory
- Attention
[edit] Subtests
The four Reasoning subtests are:
- Classification
- Sequential order
- Repeated patterns
- Design analogies
The six Visualization subtests are:
- Matching
- Figure-ground
- Paper folding
- Figure rotation
- Picture context
- Form completion
The eight Memory subtests are:
- Memory span (Forward)
- Memory span (Backward)
- Immediate recognition
- Delayed recognition
- Associative memory
- Associative delayed memory
- Spatial memory
- Visual coding
The two Attention subtests are:
- Attention sustained (marking one kind of figures printed on a page with several different figures)
- Attention divided (observing a display and simultaneously sorting cards correctly)
| This page uses content from the English-language version of Wikipedia. The original article was at Leiter International Performance Scale. The list of authors can be seen in the page history. As with Psychology Wiki, the text of Wikipedia is available under the GNU Free Documentation License. |
