title: Controlling for variability in research on normal aging and neuropsychological populations discourse analysis and applications: studies in adult clinical populations.
abstract: There has been an increase in research during the past few years on discourse, with particular focus on normal older adults and clinical populations, e.g., aphasic and head-injured patients and patients with Alzheimer's disease. A recent edited book, Discourse Analysis and Applications: Studies in Adult Clinical Populations, reviews some of this work. Research on normal older adults and clinical populations raise a number of methodological problems, in particular, variability. Such issues are not easily resolved as we currently have no standard experimental designs for this type of research. This review seeks to point out some of these methodological issues that researchers face and provides some possible solutions.
authors.affiliation: Department of Communication Sciences, University of Vermont, Burlington 05404, USA. HKAHN@GNU.UVM.EDU
authors.forename: H J
authors.initials: HJ
authors.lastname: Kahn
mesh_terms: D000375:Aging; D001921:Brain / Q000503:physiopathology; D003142:Communication; D006801:Humans