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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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ERIC Number: EJ052453
Record Type: CIJE
Publication Date: 1971
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
Birth Order, Number of Siblings and Social Reinforcer Effectiveness in Children
Unruh, Susan Gulick; And Others
Child Development, 42, 4, 1153-63, Oct 71
Descriptors: Behavioral Science Research, Birth Order, Comparative Analysis, Games, Interaction Process Analysis, Measurement Techniques, Performance, Siblings, Social Reinforcement
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A
Identifiers: N/A