Research, Hypothesis, Types of Hypothesis, Characteristics of Research Hypothesis

1. HYPOTHESIS
By- Unnati Shah

2. • An hypothesis is a tentative
explanation by the researcher of
what the researcher considers
the outcome of an investigation
will be.
• It is an informed/educated guess.
• It indicates the expectations of
the researcher regarding certain
variables.
• It is the most specific way in
which an answer to a problem
can be stated.

3. • It is a statement postulating a
possible relationship between
two or more phenomena or
variables.

4. • This hypothesis is tested for
possible rejection or approval.
• If hypothesis get accepted it
shows that your hunch was
right and if it gets rejected it
still does not mean that your
research was not valid but it
means that it is the opposite
way you thought and
perceived.

5. THE PURPOSE AND
FUNCTIONS OF AN
HYPOTHESIS
• It offers explanations for the
relationships between those
variables that can be empirically
tested.
• It furnishes proof that the
researcher has sufficient
background knowledge to make
suggestions in order to extend
existing knowledge.

6. • It gives direction to an
investigation.
• It structures the next phase in
the investigation and therefore
furnishes continuity to the
examination of the problem.

7. CHARACTERISTICS OF AN
HYPOTHESIS
• It should have elucidating power.
• It should strive to furnish an
acceptable explanation of the
phenomenon.
• It must be verifiable.
• It must be formulated in simple,
understandable terms.
• It should corresponds with existing
knowledge.

8. TYPES OF
HYPOTHESES
• Hypotheses can be classified in
terms of their derivation
(inductive and deductive
hypotheses) and in terms of their
formulation (research - directional
and non-directional and statistical
or null hypotheses).

9. NULL HYPOTHESIS
• It states that there is no association
between the predictor and
outcome variables in the
population.
• By starting with the proposition
that there is no association,
statistical tests can estimate the
probability that an observed
association could be due to chance.

10. ALTERNATIVE
HYPOTHEISIS
• The proposition that there is an -
is called the alternative
hypothesis.
• The alternative hypothesis
cannot be tested directly.
• It is accepted by exclusion if the
test of statistical significance
rejects the null hypothesis.

11. DIRECTIONAL HYPOTHESIS
• Directional hypothesis explains and
predicts the direction and existence
of a specific relationship.
• The predicted relationship will be
either positive or negative.
• It is also known as the cause-and-
effect hypothesis.

12. Characteristics of a Well-formulated
Research Hypothesis:
•Testable and Verifiable.
•Simple and Clear.
•Relevant.