The main advantage of using secondary data is that it:
A. Eliminates the need for data validation
B. Saves time and cost compared to primary data collection
C. Guarantees higher accuracy than primary data
D. Is always tailored to the researcher's specific needs
Answer: Option B
Solution (By JKSSB Mock Tests)
Secondary data is readily available from existing sources, significantly reducing the time, effort, and financial resources required for data collection compared to gathering primary data.
Explanation:
SDR eliminates age structure effects by calculating what the death rate would be if the population had the age distribution of a standard population, enabling unbiased mortality comparisons.
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