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An Hypothesis is the proposition, condition, or principle which is assumed, in order to draw out its logical consequences and by this method, tests its accord with facts which are known or may be determined. It can also be defined as; A proposal intended to explain certain facts or observations.

Hypothesis is considered as a suggested or tentative explanation of problem. Such tentative explanations are suggested to us; by something in the subject matter and by our previous knowledge. When they are formulated as proposition, they are called hypothesis. The function of an hypothesis is to direct our search for the order among facts. The suggestions formulated in the hypothesis may be solution to the problem at hand.

Types of Hypothesis

Scientific Hypothesis

A scientific hypothesis is the initial building block in the scientific method. Many describe it as an “educated guess,” based on prior knowledge and observation and
 because it provides a suggested solution based on the evidence. 

However, some scientists reject the term "educated guess" as incorrect. Experimenters may test and reject several hypotheses before solving the problem.

According to Schick and Vaughn, researchers weighing up alternative hypotheses may take into consideration:
Testability (compare falsifiability as discussed above)
Parsimony (as in the application of "Occam's razor", discouraging the postulation of excessive numbers of entities)
Scope – the apparent application of the hypothesis to multiple cases of phenomena
Fruitfulness – the prospect that a hypothesis may explain further phenomena in the future
Conservatism – the degree of "fit" with existing recognized knowledge-systems.

Working Hypothesis

A working hypothesis is a hypothesis that is provisionally accepted as a basis for further research in the hope that a tenable theory will be produced, even if the hypothesis ultimately fails. Like all hypotheses, a working hypothesis is constructed as a statement of expectations, which can be linked to the exploratory research purpose in empirical investigation. Working hypotheses and are often used as a conceptual framework in qualitative research.

The provisional nature of working hypotheses make them useful as an organizing device in applied research. Here they act like a useful guide to address problems that are still in a formative phase.

In recent years, philosophers of science have tried to integrate the various approaches to evaluating hypotheses, and the scientific method in general, to form a more complete system that integrates the individual concerns of each approach. Notably, Imre Lakatos and Paul Feyerabend, Karl Popper's colleague and student, respectively, have produced novel attempts at such a synthesis.

Reference: Live Science | Wikipedia

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