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Investigating Two Variables in a Manual Dexterity Test to Provide Suggestions for Workers in General Industries

Manual dexterity is an important ability for industries involving lots of handworks, including medical treatment and some manufacturing. To fully evaluate manual dexterity to provide more suggestions for workers in those industries, eight three subjects were recruited to do a lab test on manual dexterity using a typical instrument produced by a Chinese company. Two variables of the test were measured, namely “the total time of completing the manual dexterity test” and “the total counts of dropping pins unintentionally”. A simple linear regression was then performed between those two variables. Results show that a statistically significant positive correlation exists (the value of R2 equals 0.57, which is larger than the critical value 0.217). By dividing the results into four zones, differences between those zones as well as the importance of both physical ability (competence) and psychological factors (a good mentality) were discussed.