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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.
LIBRARY COOPERATION Libraries have many things in common. The processes and practices in several libraries are similar. Even the problems of management and services are commo
Reference Service and Literature Search A reference service, according to the A.l.A. Glossary of Library Terms, is "that phase of library work which is directly concerned wit
Filing Equipment -LIBRARY EQUIPMENT-LIBRARY MANAGEMENT Provision for filing has to be made for many kind of materials, from architectural and technical f very large size to
Question 1 a) List the layers of the OSI model and briefly explain the function of each layer. b) List the three key elements of a protocol. Give a brief explanation of ea
Scope of Materials Handling Materials handling is spread over to many different industries and fields of engineering. The followings table gives its broad application.
Sewing and Collation - library bindings: Reinforced new books which conform to A.L.A. standards, shall be designated as follows: Resewed and reinforced in class `A' cover o
Question 1 Discuss the various dimension of Quality Question 2 a. Discuss Taguchi's contributions. b. Explain Quality Loss function Question 3 What are Q
Approach of Readers for Documents: As stated earlier, documents can be arranged in libraries on the basis of the colour of the binding, the size, the language, the year of pub
NEED FOR DEFINING THE PROBLEM Problem clearly stated is a problem half solved. A proper definition of research problem will enable you as the researcher to be on the track whe
Printed Book Form: The printed book form of library catalogue is one of its typical forms. These types of library catalogues are prepared conforming to all the standard princi
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