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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.
Campaign management at Harrah's Entertainment Harrah's Entertainment is the world's largest gaming organization. Through Harrah's Total Rewards programme customers earn credit
Internal Form of the Catalogue: As mentioned earlier, according to the internal farm, the two major types of library catalogues are the Dictionary Catalogue and the Classifie
What are the characteristics of Protozoa?
DEFINITIONS OF CLASSIFICATION TERMINOLOGY: Most of the terms with definitions were used for the first time in the first edition of Prolegomena to Library Classification (1937)
Community of Practice Communities of Practice (CoP) are a network of people who are engaged in the process of collective learning in a shared domain. In the organisational cont
Age of Inventory - evolution of catalogue: Such simple lists were attempted in good numbers in the succeeding periods (900 A.D. - 1100 A.D.). Louis Pious (814-840 A.D.) issued
Issues of Periodicals and Non-Book Material-Storing, Shelving and Arrangement: Most libraries have periodical collections, the current issues having to be display for browsing
what is informal communication
ELEMENTS OF BINDING: The wear and tear of books and other documents are normal features of most modem libraries. Binding and repair of damaged books and preserving them for lo
Library Binding: Binding should be appropriate to the type of material and to the expected use. Early binding for libraries stressed strength, appearance being only a seconda
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