Running head: WEEK TWO: ACCURACY OF DATA
Week Two: Accuracy of Data
University of Phoenix
Computers and Information Processing
CIS/319
June 20, 2008
Week Two: Accuracy of Data
Poor data quality can have a substantial impact both socially and economically. Accurate and reliable data is important for people to understand the nature of a problem or situation; it can be used to understand standards, procedures and weaknesses that need to be addressed; most importantly, accurate data can be used to get feedback from the population on their spending habits so that the economy can be addressed in a more informed manner and be both better predicted and/or corrected.
For printed questioners, there are a couple of different ways that data can accurately collected and imputed. The first would be having the questioner consist of multiple choice questions and having the subjects taking the test fill out the “Scantron” sheet filling in the appropriate circle that corresponds with the answer that they want to provide. The Scantron sheet is then fed through a scanner which recognizes the circles that were filled in and inputs the answers into a server.
The benefit to using a Scantron you can eliminate the input of inaccurate information put into the system due to illegible handwriting or human error. However, the downside to using a Scantron is that sometimes it is hard to keep track of which line you just filled out the tiny circle on, if a person changes their answer and does not properly erase the first circle the scanner can read the wrong answer, and of course you must take into consideration that some of the scan sheets could be misplaced or lost meaning that some answers would never make it into the system
...