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Convenience Sampling - A convenience sample is a group of individuals who are readily available to participate in a study. That is, the choice of the sample is left completely to the convenience of the investigator. The cost involve in picking up the sample is minimum and the cost of data collection is also generally low. For example, the investigator wants to study the demand for the types of soft drinks. The interviewer can go to some soft drinks shop and can interview shopkeepers who happens to come to that particular shop and ask them questions regarding their choice for soft drinks. Convenience sample suffers from excessive bias from known and unknown source and also there is no way that the possible errors can be quantified. It is good for taking a quick opinion poll developing tools such as questionnaire or interview schedule and for preliminary study before developing an elaborate research proposal.
Charging Desk -Circulation Area in library building This is the key functional area of the library and a great deal of thought should be given to its location, size and shape
What is the meaning and Purpose of Education in this age of technological advancement?
The Integrated Management Project is designed to: develop your capability to think and act strategically test your ability to apply the concepts taught and techniques le
Demerits of dictionary catalogue: The alphabetical arrangement of entries in one sequence is at once the strength and weakness of a dictionary catalogue. The subject entries g
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QUESTION a) Define risk as per the Public Private Partnership Guidance Manual b) What are the primary objectives of transferring risks from a contracting authority to a priv
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MARC and the Subject Approach The concept of MARC (Machine Readable Catalogue) has brought in a new era in the field of library and information services. MARC stimulated the
Information Demand Information services are needed to provide information not only on demand but also in anticipation of its use. Often it will be necessary to repackage the
Information Services: In that part we shall discuss eight types of information services: Current Awareness Service (CAS) Selective Dissemination of information (SDI)
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