Advantages: Official statistics are a source of free data, Lots of information can be found out from them because lots of things are recorded, Statistics allow us to compare and contrast factors and groups and work out correlations, Because they are collected at regular intervals it's possible to view changes over time.
Disadvantages: Governments collect information for their own purpose so may not be what the researcher is looking for, Government definitions may differ from the researchers. e.g what classes as crime? what classes as poverty?
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