What errors might have occurred while gathering data?
Answers
Answer:
The main sources of error in the collection of data are as follows :
Due to direct personal interview.
Due to indirect oral interviews.
Information from correspondents may be misleading.
Mailed questionnaire may not be properly answered.
Schedules sent through enumerators, may give wrong information.
There are three types of non-sampling errors: • Errors in data acquisition, • Nonresponse errors, and • Selection bias. Increasing the sample size will not reduce this type of error.
What are the kinds of errors that you envisage in the process of collection of data ?
Due to direct personal interview.
Due to indirect oral interviews.
Information from correspondents may be misleading.
Mailed questionnaire may not be properly answered.
Schedules sent through enumerators, may give wrong information.