Generalizability of Scaling Gradients on Direct Behavior Ratings

Autor/inn/en	Chafouleas, Sandra M.; Christ, Theodore J.; Riley-Tillman, T. Chris
Titel	Generalizability of Scaling Gradients on Direct Behavior Ratings
Quelle	In: Educational and Psychological Measurement, 69 (2009) 1, S.157-173 (17 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	Weitere Informationen
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0013-1644
DOI	10.1177/0013164408322005
Schlagwörter	Generalizability Theory; Undergraduate Students; Scaling; Rating Scales; Computation; Elementary School Students; Scores; Evaluators; Error of Measurement; Observation; Task Analysis; Difficulty Level; Student Behavior + Suchen Sie Ihr Suchwort? Scale construction; Skalenkonstruktion; Rating-Skala; Messfehler; Beobachtung; Aufgabenanalyse; Schwierigkeitsgrad; Student behaviour; Schülerverhalten
Abstract	Generalizability theory is used to examine the impact of scaling gradients on a single-item Direct Behavior Rating (DBR). A DBR refers to a type of rating scale used to efficiently record target behavior(s) following an observation occasion. Variance components associated with scale gradients are estimated using a random effects design for persons (p) by raters (r) by occasions (o). Data from 106 undergraduate student participants are used in the analysis. Each participant viewed and rated video clips of six elementary-aged students who were engaged in a difficult task. Participant ratings are collected three times for each of two behaviors within three scale gradient conditions (6-, 10-, 14-point scale). Scale gradient does not substantially contribute to the magnitude of observed score variances. In contrast, the largest proportions of variance are attributed to rater and error across all scale gradient conditions. Implications, limitations, and future research considerations are discussed. (Contains 3 tables and 3 figures.) (As Provided).
Anmerkungen	SAGE Publications. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: http://sagepub.com
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10