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Nature Of Demography

NATURE OF DEMOGRAPHY

A science is a systematic body of knowledge dealing with cause and effect many definitions of science are given, of which some are given here
According to Green “Science is a way of investigating According to Karl Pearson “The unity of science consists alone in its method, not in its nature.” As Beisanz, G and Beisanz M. put it “It is approach rather than content that is the test of science.”
Scientific Method

Scientific method is a systematic study of a subject matter within a given scope. The problem to be dealt with should be clearly defined before starting work on a scientific system. Scientific method consists of well defined steps which are as follows:
(l)Observation: The starting point of scientific Systems is to minutely observe the subject matter under study. This study is conducted with the help of exact instrument of observation.
(2) Recording: The next step in scientific system is to make a careful record of the observation without any personal bias.
(3) Classification: This is the most important step of the scientific method. Under it the collected materials are properly classified and organized. As Karl Pearson states: ‘The classification of facts, the recognition of their sequence and relative significance is the function of science.” Classification should show the mutual relation of the elements.
(4) Generalization: The next step in scientific system is to generalize or to find a common rule on the basis of semblance in the classified matter. The common rule is called a scientific principle. In the words of Maclver “Such a law is simply another name for a carefully described and uniformly recurring sequence of conditions”.
(5) Verification: A scientific system is incomplete without verification of the generalizations. Verification of the scientific principles is necessary to preserve the scientific nature of the study.

Basic Requisites of Science

The special features of science are enumerated below:...