NotesFAQContact Us
Collection
Advanced
Search Tips
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

Back to results
Peer reviewed Peer reviewed
ERIC Number: EJ196949
Record Type: CIJE
Publication Date: 1979-Jan
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
Combining Variables, Controlling Variables, and Proportions: Is There a Psychological Link?
Lawson, Anton E.
Science Education, v63 n1 p67-72 Jan 1979
Investigated the degree of relationship among the performance of 28 seventh grade students on the following three formal operations tasks: chemical combinations, bending rods, and balance beam. Results show that task performance ranged widely from early concrete operational to fully operational. (HM)
Descriptors: Academic Achievement, Cognitive Development, Educational Research, Elementary Secondary Education, Junior High School Students, Learning, Learning Theories, Science Education
Publication Type: Journal Articles
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Piaget (Jean)