Perhaps Unidimensional Is Not Unidimensional

Autor/inn/en	Dodds, Pennie; Rae, Babette; Brown, Scott
Titel	Perhaps Unidimensional Is Not Unidimensional
Quelle	In: Cognitive Science, 36 (2012) 8, S.1542-1555 (14 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0364-0213
DOI	10.1111/cogs.12003
Schlagwörter	Identification; Stimuli; Mathematics; Accuracy; Improvement; Multidimensional Scaling + Suchen Sie Ihr Suchwort? Identifikation; Identifizierung; Anreizsystem; Mathematik; Qualitätssteigerung; Mehrdimensionale Analysis
Abstract	Miller (1956) identified his famous limit of 7 plus or minus 2 items based in part on absolute identification--the ability to identify stimuli that differ on a single physical dimension, such as lines of different length. An important aspect of this limit is its independence from perceptual effects and its application across all stimulus types. Recent research, however, has identified several exceptions. We investigate an explanation for these results that reconciles them with Miller's work. We find support for the hypothesis that the exceptional stimulus types have more complex psychological representations, which can therefore support better identification. Our investigation uses data sets with thousands of observations for each participant, which allows the application of a new technique for identifying psychological representations: the structural forms algorithm of Kemp and Tenenbaum (2008). This algorithm supports inferences not possible with previous techniques, such as multidimensional scaling. (Contains 2 tables and 2 figures.) (As Provided).
Anmerkungen	Wiley-Blackwell. 350 Main Street, Malden, MA 02148. Tel: 800-835-6770; Tel: 781-388-8598; Fax: 781-388-8232; e-mail: cs-journals@wiley.com; Web site: http://www.wiley.com/WileyCDA/
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10