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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.
Trade Discounts: Trade discounts area common feature in book purchases. The discounts may vary according to categories of publications. Normally a 10% discount is admissible o
Acquisition Section-Staff Activity Area of library building in libraray management The acquisition work consists of selection, approval (by competent authority, Library commit
Problem 1 Social systems are political as power relations inevitably enter into social relations. (i) In what ways are politics divisive and conflictual in a school organiz
Purchase Order/Contract A purchase order/contract is issued to the supplier/contractor. The offer once accepted by the supplier/contractor becomes a legal contract by which th
BINDING PROCESSES The, binding of books is both a craft and an art although the artistic aspect has receded to the background in modem binding, except for some special catego
QUESTION 1) Describe risk as per the Public Private Partnership Guidance Manual 2) What are the primary objectives of transferring risks from a contracting authority to a pr
Disciplines and Subjects - Library management: In a modern library the arrangement of documents is usually by subject. Thus, subject is the characteristic of division for arra
CARE AND PRESERVATION OF LIBRARY MATERIALS: As should not be shelved too tightly nor too loosely. The former damages the binding en other books are forceful inserted and the
Skills in Literature Search: Expertise in literature search can be gained only by experience. Some attitudes or traits conducive to a good literature search are: imagination,
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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