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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.
Psychological and Sociological Measurement: Psychological Measurement mainly makes use of psychological tests and inventories. Psychological test is an instrument desig
Public Catalogue -Circulation Area in library building in library management Public catalogue is the key to the document collection in a library and frequently used by the re
QUESTION Suppose you are the Chief Information Officer (CIO) of a multi-national organization and you are making a case to the organization's management for the implementation
Question 1 In order to include the cost aspects in the project scheduling, it is very much essential to first define the cost-duration relationships for various activities in the
Problem (a) Explain the relevancy of social networks, social networking, and social media to the practice of public relations. (b) "It "ain't" your aunts or uncles way anym
Problem 1 (a) Radio as a medium of communication has advantages over Television and Print media. Explain three advantages of Radio and highlight two situations, with examples,
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Factors Driving Contracting In this section let us try to analyse the factors which drive contracting decisions. Here, the buy mode is referred as contracting, subcontracting
Flexibility in contracts In the "1? and "2? modes, the single entity is the Lump Sum Turnkey Contract (LSTK), EPC contractor and the D-B contractor respectively. In both these
.Purposes of a Library Catalogue Libraries generally acquire reading and reference materials in various physical forms, which will be utilised by users for study, referen
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