What is meant by direct personal investigation? Give its merits and demerits.
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Poi patida summa question kekuren vantha
Good yogita
Direct personal investigation is the method in which data are collected by the investigator personally from sources concerned.MERITS:-1.this method ensures high degree of accuracy.2.collected data are uniform because they are collected by one person.3.original data are collected by this method.4.comparative study is possible.DEMERITS:-1.this method requires a long time an involves enormous cost.2.this method consumes more time.3. in this method there is more use of power.4.this method is highly prone to personal bias of the investigator.