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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.
factors affecting project life cycle
Arrays and Chains: Isolates are arranged in what are called arrays and chains. ,An array is a sequence of coordinate (equally ranked) classes arranged in some definite order.
Every employer who employs more than 100 persons in his enterprise must, under section 30 of the Occupational Safety and Health Act 2005 appoint a registered Safety and Health Offi
Semi-public documentation/information centres: Established by learned or professional societies, trade associations industrial undertakings, etc., they exist primarily for ser
Information Sources, Resources and Services: The term 'Information sources' has two connotations. One is that of the stores or locations in which information kept Therefore, a
Development of Library Resource Sharing Network The development of library networks is the result of computerisation of catalogues and bibliographic databases and the developm
A large unit manufacturing electrical goods which has been known for its liberal personnel policies and fringe benefits is facing the problem of low productivity and high absenteei
Question 1 What are the advantages and disadvantages of case studies? Question 2 In a research paper, what is meant by the Method Section? Explain Question 3 What is sam
whom do you think rajender will eat with? Why?
Acquisition Through Exchange: Acquisition through exchange is another mechanism by which Collection Development can take place. Of course, it goes without saying that the libr
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