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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.

Learn more about the history of ERIC here. PDF icon

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ERIC Number: EJ058209
Record Type: CIJE
Publication Date: 1972
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Abstractor: N/A
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The Effects of Pre-Test Difficulty on Post-Test Performance Following Self-Instruction
Hartley, James
Programmed Learning and Educational Technology, 9, 2, 108-112, Mar 72
Descriptors: Academic Achievement, Educational Research, Pretests Posttests, Programed Instruction
Publication Type: N/A
Education Level: N/A
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