ERIC Number: ED022844
Record Type: RIE
Publication Date: 1967-Dec
Reference Count: N/A
A Study of the Effect of Physical Maturity and Intelligence on the Manipulative Performance of Junior High School Students.
Bortz, Richard Frederick
The principal concern of this study was to determine if there were significant relationships between selected factors of physical maturity and intelligence of seventh, eighth, and ninth grade boys and their ability to perform two common industrial arts woodworking tasks, sawing and hammering, using standard and modified tools. A sample of 72 boys was selected from a naive population of 445 boys. Measures of intelligence, coordination, manipulative ability, shoulder extension, shoulder flexion, elbow extension, elbow flexion, and grip were correlated with dependent measures of sawing with a standard or modified saw and hammering with a standard or modified hammer. Findings indicated that; (1) The independent variables accounted for less than one-half the variance required to predict performance in any of the four tasks, (2) The size of the saw has little effect on students' performance, (3) The size of the hammer did have some effect on the students' performance, and (4) Projects involving sawing and hammering were suitable for these grades if they did not overtax the student. This Ph.D. thesis was submitted to the University of Minnesota. (EM)
Descriptors: Ability, Achievement Rating, Doctoral Dissertations, Hand Tools, Industrial Arts, Intelligence, Junior High School Students, Physical Development, Task Performance
University Microfilms, Inc., 300 North Zeeb Road, Ann Arbor, Michigan 48106 (microfilm $3.00, xeroxed copy $6.60).
Publication Type: N/A
Education Level: N/A
Authoring Institution: N/A