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.Management Sciences
A. the influence of specific variables can be controlled by the investigator
B. it usually generates richer and more in-depth information than other methods
C. it is essential when a study is primarily historical or has a historical dimension
D. it can only be used to study relatively small groups or communities
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- In observational studies the scientist observes_______________?
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- When a number of researchers use the same operational definition to measure a variable and achieve the same results the measure is said to be_______________?
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