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Secondary Data on Reliable Tests

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1) Please share 3 real world examples of problems, which occurred due to the use of secondary data. Be specific about the consequences as well the secondary data used. You may use your own organization or research the net or literature for this one.

2) Can a marketing survey to research consumers' taste be developed for a global population? Does it depend on what aspects of the research? Support your response with one example.

3) Can a test be reliable and not valid or vise versa? Why or why not? Please share at least one real world example.

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Solution Summary

The solution shares real world examples of problems which occurred due to the use of a secondary data.

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1) Please share 3 real world examples of problems, which occurred due to the use of secondary data. Be specific about the consequences as well the secondary data used. You may use your own organization or research the net or literature for this one.

- the first problem could be in the fact that you do not know where the data comes from - it could be from a source that is not trust worthy. If you are then going to base your research on this data, your research will not be correct
- the secondary source may not be complete - you have no way of knowing that all necessary information is there
- you do not know the full story of the data, if special precautions were taken, for example, what if only a sub-section of a population was polled, when you thought the sample was representative of the general population.

A real world example could be a firm that is producing a new type of chocolate, and they would like to know what group of people like a similar existing product. They use a secondary data source, thinking that the source contains a random sample of people. They then use ...

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