Collection Of Data Flashcards
Which method of collection of data gives us better results?
Sampling survey
Which one of the following error is more serious
Non sampling error
The method of collection of data in which reactions can be watched
Personal interview
Data collected by the investigator is called the _______________
Primary data
The method of interview in obtaining information at a shorter period of time is __________________
Telephonic interview
Most expensive method of interview is ________________
Personal interview
The method of data collection which cannot be used by illiterates is called_______________________
Mailing questionnaire
Census of India is carried out once in ___ years
10
mention the two sources of data
a)primary ddata
b) Secondary data
Write any two qualities of a good questionnaire
1) The questions should move from general to specific
2) There should be no ambiguity in questions.
3) The questionnaire should not be too long
Mention the methods of collecting data
a) Personal interviews
b) Mailing questionnaire
Write the differences between census and sample survey
A survey, which includes every element of the population, is known as census. Sample refers to a group or section of population from which information is obtained.
What are methods of selecting samples in random sampling?
Lottery method and by using random number tables this can be done.
Give the meaning of pilot survey
Once the questionnaire is ready , it is advisable to conduct a try out with a small group of people which is known as pilot survey or pre-testing of questionnaire.
