Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Developmental Longitudinal and Cross Sectional Survey:
Suppose, you wish to study the growth and development pattern of children from birth tofive years of age. This is an example of development research. This studycan be done in two ways. One, the researcher can follow a group of new born infants from their birth to five years of age to assess aspects of their growth and development patterns. This is called as longitudinal survey. The second method is a cross sectional survey where the researcher for example takes representative samples fiom the age groups of birth-three months, four-six months, seven, nine months, and so on till the sixteenth month. Both methods have certain advantages and disadvantages. Let us examine them.
In longitudinal survey sequence of events is observed in each subject selected for the study. Data here is more objective as the subjects do not have to recall for reply. The most difficult part of this study is to keep contact with the subjects as the individuals may move out of the place of residence or drop out of the study. This is called as the subject mortality. For this reason a large number of subjects is needed for desired sample size in the end of the study. It takes a long time to know the final results. Many a time cross-sectional study is done in place of longitudinal study. Advantages are that it can be completed in a relatively short time and is relatively less expensive; sample loss is less than longitudinal study; and the results are known early. The disadvantage. is that the method can only consider the present and past and not the future as in longitudinal study. So, trends and patterns over a period of time can not be described.
The case study and retrospective survey (or ex-post facto) are two other methods which are sometimes included as types oi survey method or sometimes are treated separately. However, we are discussing them under survey.
QUESTION 1 Explain each of the following concepts- (a) PESTEL analysis of the macro-environment (b) Porter's five forces (c) Value chain analysis QUESTION 2 Th
Mention the characteristics of Statistics. Explain any two applications of Statistics.
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)
Call Number: The call numbers' for a document consists of three elements, viz.,class number, book number and collection number. The following example will show the presence of
Question 1: (a) Describe, with the use of examples, Lewin's model of organisational change. (b) Explain either the "action research model" developed by Cummings & Huse or th
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,
Periodicals: Now let us discuss the type of documents that need binding in libraries. Among these, periodicals need to ' be bound for their archival value. Periodicals constit
T he change owner The change owner is the person assigned to essentially arrange and then make the approved changes to the system. The change owner is consulted about the foll
Understanding body language Body language implies non verbal communication that involves body movements. What we try to deliver through verbal means may not be similar to the
Union Catalogue A library catalogue, we know, is a list of all or some of the holdings of a library. If two or more libraries make out such a list we call it a Union Catalogu
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd