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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: EJ268895
Record Type: CIJE
Publication Date: 1982-Oct
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0022-4308
The Effect of Frequency of Testing Upon the Measurement of Achievement in an Intensive Time-Series Design.
Mayer, Victor J.; Rojas, Carlos A.
Journal of Research in Science Teaching, v19 n7 p543-51 Oct 1982
Determined effect of testing frequency on data obtained using intensive time-series design. Eighth-grade, earth science student attitudes toward science class and class achievement data were not affected by frequency of data collection. Results of a previous study were also replicated, giving increased confidence in validity of data yielded by the design. (Author/JN)
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Science Education Research; Time Series Design