Initial Validity and Reliability of the SCCAN: Using Tailored Testing to Assess Adult Cognition and Communication

Autor/inn/en	Milman, Lisa H.; Holland, Audrey; Kaszniak, Alfred W.; D'Agostino, Jerry; Garrett, Merrill; Rapcsak, Steve
Titel	Initial Validity and Reliability of the SCCAN: Using Tailored Testing to Assess Adult Cognition and Communication
Quelle	In: Journal of Speech, Language, and Hearing Research, 51 (2008) 1, S.49-69 (21 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
DOI	10.1044/1092-4388(2008/004)
Schlagwörter	Speech Communication; Alzheimers Disease; Adaptive Testing; Construct Validity; Pathology; Item Response Theory; Evaluation Methods; Control Groups; Neuropsychology; Neurological Impairments; Cognitive Processes + Suchen Sie Ihr Suchwort? Pathologie; Item-Response-Theorie; Neuropsychologie; Neurodegenerative Erkrankung; Cognitive process; Kognitiver Prozess
Abstract	Purpose: The Scales of Cognitive and Communicative Ability for Neurorehabilitation (SCCAN; L. Milman & A. Holland, 2007) was developed in the hospital setting to address changes in assessment practice. The SCCAN was designed to provide an overview of impairment and activity limitations across 8 cognitive scales (Speech Comprehension, Oral Expression, Reading, Writing, Orientation, Attention, Memory, and Problem Solving). The scales were developed using item response theory so that tailored testing could be implemented to reduce test administration time. This research investigated the validity and reliability of the SCCAN. Method: A battery of neuropsychological tests was administered to 40 neurologically healthy control participants and 51 participants diagnosed with left-hemisphere pathology, right-hemisphere pathology, or probable Alzheimer's disease. Analyses were performed to assess test sensitivity and specificity, construct validity, administration time, and reliability. Results: The test accurately classified 95% of the control participants and 98% of the participants diagnosed with neurological disorders. Results indicate that the test also differentiated the performance profiles of the 3 clinical populations. In addition, test scores correlated significantly with external measures of the same cognitive areas. Mean administration time was 34 min. Test-retest stability (r = 0.96, p less than 0.001) and internal consistency (r = 0.99, p less than 0.001) coefficients were both significant, indicating that tailored testing procedures generated reliable test scores. (Author).
Anmerkungen	American Speech-Language-Hearing Association (ASHA). 10801 Rockville Pike, Rockville, MD 20852. Tel: 800-638-8255; Fax: 301-571-0457; e-mail: subscribe@asha.org; Web site: http://www.asha.org/about/publications/journal-abstracts/jslhr/
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10