Theme: Contrastive linguistics and comparative typology

Typological linguistics is a subfield of linguistics that studies and classifies languages according to their structural features. Its aim is to describe and explain the structural diversity of the world's languages.
Comparative linguistics (originally comparative philology) is a branch of linguistics that is concerned with comparing languages to establish their historical relatedness.
It aims to construct language families, to reconstruct proto-languages and specify the changes that have resulted in the documented languages. To maintain a clear distinction between attested and reconstructed forms, comparative linguists prefix an asterisk to any form that is not found in surviving texts. A number of methods for carrying out language classification have been developed, ranging from simple inspection to computerised hypothesis testing. Such methods have gone through a long process of development.
Comparative linguistics is that branch of one,which deals with the study of languages in terms of their history,relatedness,families andconstruct new forms.

Methods of comparative typological research.

-the comparative method aims at establishing the isomorphic(alongside of allomorphic) features and on their basis the determining of structural types of languages under contrastive investigation;
-the deductive method is based on logical calculation which suggests all the possible variants of realization of a certain feature/phenomenon in speech of one or more contrasted languages;
-the inductive method which needs novarification, since the investigated feature was proved by linguists and therefore the results obtained are possible;
-the statistic method for establishing the necessary quantitative and qualitative representation of some features or for identifying the percentage of co-ocurrence of some features or linguistic units in the contrasted languages;
-the IC (immediate constituents) method is employed to contrast only linguistic units for investigating their constituent parts in one or some contrasted languages;
-transformational method for identifying the nature of a linguistic unit in the source language or for determining the difference in the form of expression in the contrasted languages.