Latent semantic analysis: A new method to measure prose recall
Date
2002
Authors
Dunn, J.
Almeida, O.
Barclay, L.
Waterreus, A.
Flicker, L.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Journal of Clinical and Experimental Neuropsychology, 2002; 24(1):26-35
Statement of Responsibility
John C. Dunn, Osvaldo P. Almeida, Lee Barclay, Anna Waterreus, and Leon Flicker.
Conference Name
Abstract
The aim of this study was to compare traditional methods of scoring theLogical Memory test of the Wechsler Memory Scale-III with a new method basedon Latent Semantic Analysis (LSA). LSA represents texts as vectors in a high-dimensionalsemantic space and the similarity of any two texts is measured by the cosineof the angle between their respective vectors. The Logical Memory test wasadministered to a sample of 72 elderly individuals, 14 of whom were classifiedas cognitively impaired by the Mini-Mental State Examination (MMSE). The resultsshowed that LSA was at least as valid and sensitive as traditional measures.Partial correlations between prose recall measures and measures of cognitivefunction indicated that LSA explained all the relationship between LogicalMemory and general cognitive function. This suggests that LSA may serve asan improved measure of prose recall.
School/Discipline
Dissertation Note
Provenance
Description
Copyright © 2002 Swets & Zeitlinger