Abstract:
No significant correlation between carrel times and/or total time spent in the laboratory with final course grades was found during four years (1972-1975) of autotutorial crop science laboratory teaching. Urban students spent either more carrel time or total laboratory time than did farm students in completing studies on the identification of common legumes and grasses as well as insects. No significant differences in either carrel or total laboratory times were observed between urban and farm students on studies of : (a) crop or weed seed identification, (b) corn and soybean seedlling emergence, (c) basic genetics, (d) classification of flowering plant families, and (e) common crop diseases. Females spent total laboratory time than males, but less carrel time in completing some objectives in crop science. Freshmen, students with no part-time employment, and students enrolled in non-engineering-mechanization curricula spent either more carrel or total laboratory time in completing some objectives than did sophomores and upper classmen, students with part-time employment, and engineering-mechanization students, respectively. In 8 of 10 study unit, student carrel times exceeded unit tape times.
Keywords:
carrel use, student backgrounds, grades, autotutorial, crops lab
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