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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: EJ389277
Record Type: CIJE
Publication Date: 1989
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
In Search of a Happy Medium in Instructional Technology Research: Issues Concerning External Validity, Media Replications, and Learner Control.
Ross, Steven M.; Morrison, Gary R.
Educational Technology Research and Development, v37 n1 p19-33 1989
Proposes directions to help researchers balance instructional technology goals with the performance of well-designed and scientifically sound studies. Issues concerning the external validity of studies, use of media replications, and learner control as a means of adapting instructional strategies to individuals are emphasized, and designs for future studies are suggested. (84 references) (Author/LRW)
Descriptors: Computer Assisted Instruction, Educational Technology, Intermode Differences, Learning Strategies, Media Research, Research Design, Research Needs, Research Problems, Researchers, Text Structure
Publication Type: Journal Articles; Information Analyses; Opinion Papers
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: External Validity; Learner Control; Media Use; Screen Format
Note: Formerly published as two journals: "Educational Communications and Technology Journal" and "Journal of Instructional Development."