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ERIC Number: EJ978024
Record Type: Journal
Publication Date: 2012-Dec
Pages: 14
Abstractor: As Provided
Reference Count: N/A
ISSN: ISSN-0959-4752
Observer Ratings of Instructional Quality: Do They Fulfill What They Promise?
Praetorius, Anna-Katharina; Lenske, Gerlinde; Helmke, Andreas
Learning and Instruction, v22 n6 p387-400 Dec 2012
Despite considerable interest in the topic of instructional quality in research as well as practice, little is known about the quality of its assessment. Using generalizability analysis as well as content analysis, the present study investigates how reliably and validly instructional quality is measured by observer ratings. Twelve trained raters judged 57 videotaped lesson sequences with regard to aspects of domain-independent instructional quality. Additionally, 3 of these sequences were judged by 390 untrained raters (i.e., student teachers and teachers). Depending on scale level and dimension, 16-44% of the variance in ratings could be attributed to instructional quality, whereas rater bias accounted for 12-40% of the variance. Although the trained raters referred more often to aspects considered essential for instructional quality, this was not reflected in the reliability of their ratings. The results indicate that observer ratings should be treated in a more differentiated manner in the future. (Contains 7 tables and 2 figures.)
Elsevier. 6277 Sea Harbor Drive, Orlando, FL 32887-4800. Tel: 877-839-7126; Tel: 407-345-4020; Fax: 407-363-1354; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: Elementary Secondary Education; Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A