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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

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Peer reviewed Peer reviewed
ERIC Number: EJ251570
Record Type: CIJE
Publication Date: 1981
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
Reply to the Article by J. Dunkerton and J. J. Guy.
Eggleston, Jim F.; Galton, Maurice J.
European Journal of Science Education, v3 n3 p317-19 Jul-Sep 1981
In response to criticisms of the reliability of the sampling methods associated with the Science Teaching Observation Schedule (STOS), the instrument's authors briefly review the rationale in developing the STOS and describe several studies validating the instrument. (DS)
Publication Type: Journal Articles; Opinion Papers; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Science Education Research; Science Teaching Observation Schedule