_____________ is a preliminary piece of research conducted before a complete survey to test the effectiveness of the research methodology.
Sample survey
Pilot survey
Census
None of these
A survey which includes every element of the population is known as
Primary data
______________ is based on first hand information.
Sampling
Secondary data
Census method
____________ refers to a group or section of the population from which information is to be obtained.
Sample
Random
Sampling error
___________ method is expensive.
Telephone interview
Personal interview
Mailing questionnaire
Raw data is also known as
Survey data
un processed data
Sample data
There are _________ basic ways of collecting data.
Two
Three
Four
Five
In __________ method the investigator asks questions over the telephone.
____________ helps in pre-testing of the questionnaire.
____________ should be completed before the final survey commences.
