What are common sources of error in using secondary data? - sources of error in theodolyte
What are the main sources of errors in the use of secondary data or secondary sources.?
And once again to discuss the question in order to questions of validity and reliability is what?
Wednesday, February 24, 2010
Sources Of Error In Theodolyte What Are Common Sources Of Error In Using Secondary Data?
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A test is valid if it measures what it should be. It is reliable that delivers consistent results. For more information:
http://www.georgetown.edu/departments/ps ...
The disadvantages of using secondary data
You have no control over how the device is designed, how they collect, or how they are treated and documented. Another serious trade-offs between primary and secondary data is the issue of anomalies, and if the collected data, which you yourself have a clear understanding of how these data should be included (in a frequency table, for example) have. You are more quickly identify and correct these anomalies. When you import data from another person, you do not know all the intricacies of the EMKing of the coding decisions and data collection.
http://ed.isu.edu/research/Procedures/Da ...
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