Formal Lab Report Essay

Human chemical reply durations deepen person to person and often increase with age. This change in reception prison term can have little impact on a persons daily life, such as when answering a ringing teleph virtuoso and only(a). But this change can also have a dramatic impact when driving, working in dangerous environments, and negotiating busy streets and sidewalks. publications Search Reaction beat has been used as a psychological test since the mid-19th century (Deary, 1). Several studies have been conducted dealing with reply date and the factors that can affect it.In their study titled Validation of reaction time as a measure of cognitive function and gauge of life in healthy subjects and patients, Jakobsen, Sorensen, et al studied and reported findings regarding superfluous reaction times and the effect that poor health had on those times. Findings were determinate that the healthier the individual, the better their responses. Hypothesis Individuals reaction time with their dominant hand is faster than those with their non-dominant hand. Conversely, there may be no statistically valid difference in the reaction time from one hand to the other. ExperimentTo test the variance in reaction time from dominant hand to non-dominant hand we set up an experiment exploitation a simple reaction time test found in the free marketplace on an Android telephone. This application required the drug user to touch one of four colored stars that match the color of an set star in the upper right hand corner. The subject was asked to resound this response 20 times and the total time was scored as the reaction time. If a subject made an incorrect touch then their time would continue until the correctly touched 20 stars. The subject would then be ask to repeat this test with their non-dominant hand.To standardize the testing instructions were provided by my team mates and it was decided that the subject would place the device on a flat surface in front of them and use the business leader finger on first their dominant hand and then their non-dominant hand. entropy was collected for 30 random subjects and analysis performed. selective information Analysis Data collected from the 30 random subjects was input and the following summary statistics were produced. governing Hand Mean Reaction clipping (D) 18. 865 sec. Median Reaction clock time (D) 17. 264 sec. Variance (D) 28. 235 sec. Standard aside (D) 5. 314 sec. Non-dominant HandMean Reaction Time (N) 17. 734 sec. Median Reaction Time (N) 16. 412 sec. Variance (N) 16. 130 sec. Standard Deviation (N) 4. 016 sec. The graphs below illustrate the mean for each hand as wholesome as error with in plus or minus one standard deviation. Conclusion After conducting this experiment and reviewing the data, a few things became clear. mavin is that age of the subject had a significant impact on results with two hands. This is presumed to be the result of the interaction w ith a new technology. Younger subjects seemed to hairgrip the concept of what they were expected to do to a greater extent quickly.Second, in this case, familiarity did not melodic line contempt, but it did breed faster reaction times. As subjects became more pleasant with the application they were using, their response times decreased. The later of these two factors had a more global effect on our outcomes, thus disproving our hypothesis in this case. I do not believe these results to be conclusive or despotic and simply put, more research is needed. References Deary, I. J. , Liewald, D. & angstrom unit Nissan, J. (2011) A free, easy-to-use, computer-based simple and four-choice reaction time programme The dearly-liewald reaction time task.Behavior Research Methods (Online), 43(1), 258-268. Retrieved from http//search. proquest. com/docview/920259801? accountid=39001 Jakobsen, L. H. , Sorensen, J. M. , Rask, I. K. , Jensen, B. S. , & Kondrup, J. (2011). Validation of reactio n time as a measure of cognitive function and quality of life in healthy subjects and patients. Nutrition, 27(5), 561-570. Doi http//dx. doi. org/10. 1016/j. nut. 2010. 08. 003 Norman, Celia (2011). general Biology 111 Laboratory Manual. Denver, CO Department of Biology, Arapahoe Community College.