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Charles Perfetti is the director of, and Senior Scientist for, the Learning and Research Development Center at the University of Pittsburgh.His research is centered on the cognitive science of language and reading processes, including but not limited to lower- and higher-level lexical and syntactic processes and the nature of reading proficiency.
The Cattell–Horn–Carroll theory factors that this test examines are based on 9 broad stratum abilities, although the test is able to produce 20 scores [4] only seven of these broad abilities are more commonly measured: comprehension-knowledge (Gc), fluid reasoning (Gf), short-term memory (Gsm), processing speed (Gs), auditory processing (Ga), visual-spatial ability (Gv), and long-term ...
New word recognition capabilities have made computer-based learning programs more effective and reliable. [8] Improved technology has enabled eye-tracking, which monitors individuals' saccadic eye movements while they read. This has furthered understanding of how certain patterns of eye movement increases word recognition and processing.
The original KABC was developed from neuropsychological theory, merging left brain-right brain research on cerebral specialisation (e.g., Sperry, 1968) with Luria's sequential simultaneous processing dichotomy (Luria, 1966) and work in cognitive psychology. The KABC focuses on the processes needed to solve problems rather than their content i.e ...
A fundamental question is whether cognitive functions, for example visual processing and language, are autonomous modules, or to what extent the functions depend on each other. Research evidence points towards a middle position, and it is now generally accepted that there is a degree of modularity in aspects of brain organisation. In other ...
Human tests of cognitive ability measure a wide spectrum of mental abilities. When considering tests of cognitive ability, it is paramount to consider evidence for their reliability, validity, length, and mode of administration (e.g., some assessments require a trained administrator to be present with the respondent).
For example, for the letter R in the word "card", an observer might be asked to choose between the letter R and T, and will usually be more efficient in doing so than if they are asked to make the same choice with the string of letters such as "cqrd". [1] Each possible completion with the two possible letters in the word condition produce a word.
Rapid automatized naming (RAN) is a task that measures how quickly individuals can name aloud objects, pictures, colors, or symbols (letters or digits). Variations in rapid automatized naming time in children provide a strong predictor of their later ability to read, and is independent from other predictors such as phonological awareness, verbal IQ, and existing reading skills. [1]