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For any information to be valid, it should
have a clear, precise and standard definition. The appropriate method of measurement, the
unit of measurement as well as, minimum and maximum accepted values should be specified.
Thus, the second step for a researcher is to clarify adequately the information required.
Example: Infant’s age can be specified as: All infant’s below one year of age
admitted to hospital during the study period, calculated from date of birth & date of
admission in month from 0-<12months (11months, 29 days 23 hours, 59 minutes and 59
seconds ). |
