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ERIC Number: ED121739
Record Type: Non-Journal
Publication Date: 1976-Mar-15
Pages: 12
Abstractor: N/A
Reference Count: N/A
The Effect of Age, Sex, Speed and Practice on C/A Performance of Children.
Dunham, Paul, Jr.
This study investigated whether age, sex, speed, and practice affects the acquisition of coincidence-anticipation (C/A) performance accuracy of children ages seven to twelve. (C/A refers to the ability to make a motor response coincident with the arrival of an object at a designated point.) The subjects used in this study were 84 elementary students. Fourteen subjects, seven boys and seven girls, were included in each of six age groups. The apparatus employed consisted of a wooden track the length of which traveled a gravity propelled car, and a subject's anticipation switch. The testing procedure began with subjects depressing the switch at the experimenter's command. The car was then released and travelled down the track. When the car passed a first switch, two timers were activated. As the second switch was passed, one time clock was stopped. The other timer stopped at the moment the subject judged that the car and switch were in coincidence. A subject's score was the absolute difference between the times recorded on the two clocks. Results revealed that while 11 and 12 year olds' performances did not differ significantly, both exhibited more accurate performances than the 10, nine, and eight year olds. The performance accuracy of the seven year olds was significantly less than that of each of the other five age groups. Males' performance was superior to females, but was attributed to the testing situation as opposed to a biological difference. Practice was shown to influence accuracy positively. (DMT)
Publication Type: Reports - Research
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A