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ERIC Number: ED132055
Record Type: Non-Journal
Publication Date: 1976
Pages: 15
Abstractor: N/A
Reference Count: N/A
Intellectual Development Beyond Elementary School VI, Controlling Variables: A Survey.
Wollman, Warren
Reported is a study of 1555 students, grades 4-12, regarding understanding the concept of controlling variables. Subjects were examined on a task involving spheres rolling down an incline and striking a target sphere; they were evaluated upon their explanations of answers, not their choice of answers. Findings indicated that the Piagetian stage of formal thinking does not develop spontaneously; however, for above average subjects, the beginning of a formal stage usually develops by age 14, and somewhat later for less able subjects. Also, it is probable that there is no single formal concept of controlling variables. A copy of the evaluation instrument is included. (SL)
Publication Type: Reports - Research
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: California Univ., Berkeley. Lawrence Hall of Science.