The document discusses hypotheses in research. It defines a hypothesis as a tentative statement about the relationship between two or more variables. Hypotheses help translate research problems into clear predictions and guide investigation. They provide objectivity, direction for data collection, and goals for researchers. Well-stated hypotheses are testable, consistent with existing knowledge, and help establish a link between theory and empirical research. Different types of hypotheses, such as simple, complex, associative, causal, directional, and null hypotheses are described. Sources for developing hypotheses include theoretical frameworks, previous research findings, literature, and experiences.
Methods of data collection (research methodology)Muhammed Konari
Included all types of data collection.Includes primary data collection and secondary data collection. Described each and every classification of Data collections which are included in KTU Kerala.
RESEARCH DESIGN , Sampling Designs , Dependent and Independent Variables, Extraneous Variables, Hypothesis, Exploratory Research Design, Descriptive and Diagnostic Research
Methods of data collection (research methodology)Muhammed Konari
Included all types of data collection.Includes primary data collection and secondary data collection. Described each and every classification of Data collections which are included in KTU Kerala.
RESEARCH DESIGN , Sampling Designs , Dependent and Independent Variables, Extraneous Variables, Hypothesis, Exploratory Research Design, Descriptive and Diagnostic Research
Formulating Hypothesis
Hypothesis Formulation is –
-the process of creating possible, tentative explanations for a given set of information.
-the whole Process of creating and formulating the hypothesis
How is Hypothesis Formulated
Reichenbach (1938) made a distinction between the two processes found commonly in any hypothesis formulation -
-Context of Discovery:
--Hypotheses is ‘discovered’ from earlier research findings, existing theories and personal observations, and experience.
-Context of justification:
--When a Researcher reconstructs his thoughts and communicates them in the form of a hypothesis to others, he uses the context of justification –
Steps in Formulation of Hypothesis
-Understand the area of problem
-Consider goal
-Identify variables
-identify the relationship between the variables.
-Think critically about hypothesis
-Express the idea as own hypothesis
Process of Hypothesis Formulation
-Understand the area of problem
Understand the problem that is being worked on.
-Consider goal
After selecting the problem & understanding the problem, objectives have to be selected according to the problem
-Identify variables
Must be define the variables.
Variables in hypothesis are testable not ?
Specify dependent and independent & others variables.
-Identify the relationship between the variables.
Variables are influence each other or not?
-Think critically about hypothesis
Hypothesis are testable, verifiable or not ? Which will make able to confirm the hypothesis.
-Express the idea as own hypothesis
Here researcher made the hypothesis in a Tentative Solution Statement manner
hypothesis and type of hypothesis is explained with appropriate examples
Hypotheses and type of hypotheses are explained with appropriate examples
Research hypothesis, null hypothesis, directional hypothesis, non-directional hypothesis, simple hypothesis, complex hypothesis etc
Formulating Hypothesis
Hypothesis Formulation is –
-the process of creating possible, tentative explanations for a given set of information.
-the whole Process of creating and formulating the hypothesis
How is Hypothesis Formulated
Reichenbach (1938) made a distinction between the two processes found commonly in any hypothesis formulation -
-Context of Discovery:
--Hypotheses is ‘discovered’ from earlier research findings, existing theories and personal observations, and experience.
-Context of justification:
--When a Researcher reconstructs his thoughts and communicates them in the form of a hypothesis to others, he uses the context of justification –
Steps in Formulation of Hypothesis
-Understand the area of problem
-Consider goal
-Identify variables
-identify the relationship between the variables.
-Think critically about hypothesis
-Express the idea as own hypothesis
Process of Hypothesis Formulation
-Understand the area of problem
Understand the problem that is being worked on.
-Consider goal
After selecting the problem & understanding the problem, objectives have to be selected according to the problem
-Identify variables
Must be define the variables.
Variables in hypothesis are testable not ?
Specify dependent and independent & others variables.
-Identify the relationship between the variables.
Variables are influence each other or not?
-Think critically about hypothesis
Hypothesis are testable, verifiable or not ? Which will make able to confirm the hypothesis.
-Express the idea as own hypothesis
Here researcher made the hypothesis in a Tentative Solution Statement manner
hypothesis and type of hypothesis is explained with appropriate examples
Hypotheses and type of hypotheses are explained with appropriate examples
Research hypothesis, null hypothesis, directional hypothesis, non-directional hypothesis, simple hypothesis, complex hypothesis etc
For a detailed explanation Watch the Youtube video:
https://youtu.be/6g4tD162yhI
Hypothesis, Characteristics of a good hypothesis, contribution to research study, Types of hypothesis, Source, level of significance, two-tailed one-tailed test, types of errors
a small and well descriptive presentation on hypothesis topic. it has all the information you need to know about the topic covering the types, characteristics and contributions you want to know about hypothesis.
UNIT II - Identification of Problem & Review of Literature
Problems in research – identification of research problem,
Research objectives and Research Hypothesis,
Research question
Questionnaire and Interview Schedule.
A hypothesis is an assumption that is made based on some evidence. This is the initial point of any investigation that translates the research questions into predictions. It includes components like variables, population and the relation between the variables. A research hypothesis is a hypothesis that is used to test the relationship between two or more variables.
hypothesis-Meaning need for hypothesis qualities of good hypothesis type of hypothesis null and alternative hypothesis sources of hypothesis formulation of hypothesis, hypothesis testing
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2. A hypothesis is a formal tentative statement
of the expected relationship between two or
more variables under study.
A hypothesis helps to translate the research
problem & objectives into a clear explanation
or prediction of the expected results or
outcomes of the research study.
A clearly stated hypothesis includes the
variables to be manipulated or
measured, identifies the population to be
examined, & indicates the proposed outcome
for the study. www.drjayeshpatidar.blogspot.com
3. ‘Hypothesis is a tentative prediction or explanation
of the relationship between two variables.’ It implies
that there is a systematic relationship between an
independent & a dependent variable.
For example, dietary compliance will be greater in
diabetic patients receiving diet instruction in small
groups than in diabetic patients receiving
individualized diet instructions.
Good & Hatt define hypothesis as a shrewd guess or
inference that is formulated & provisionally adopted
to explain observed facts or conditions & to guide in
further investigation.
www.drjayeshpatidar.blogspot.com
4. Hypotheses enables the researcher to objectively
investigate new areas of discovery. Thus , it provides
a powerful tool for the advancement of knowledge.
Hypotheses provides objectivity to the research
activity.
It also provides directions to conduct research such
as defining the sources & relevance of data.
Hypotheses provides clear & specific goals to the
researchers. These clear & specific goals provide the
investigator with a basis for selecting sample &
research procedures to meet these goals.
www.drjayeshpatidar.blogspot.com
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Hypotheses provides link between theories &
actual practical research.
It provides a bridge between theory & reality.
A hypothesis suggests which type of research is
likely to be most appropriate.
As it is a tentative statement of anticipated
results, it guides the researcher towards the
direction in which the research should proceed.
It stimulates the thinking process of researcher
as the researcher forms the hypothesis by
anticipating the outcome.
www.drjayeshpatidar.blogspot.com
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It also determines the most appropriate
research designs & techniques of data
analysis.
Hypotheses provides understanding to the
researchers about what expect from the
results of the research study.
It serves as framework for drawing
conclusions of a research study.
Without hypotheses, research would be like
aimless wandering.
www.drjayeshpatidar.blogspot.com
7. Conceptual clarity:
Hypothesis should consist of clearly
defined & understandable concepts. It should be
stated in very terms, the meaning & implication of
which cannot be doubted. To facilitate the conceptual
clarity, hypothesis can be stated in declarative
statement, in present tense.
Empirical referents:
Research must have an ultimate
empirical referent. No usable hypothesis can embody
moral judgments. A good hypothesis must have
empirical basis from the area of enquiry.
www.drjayeshpatidar.blogspot.com
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Objectivity:
Hypothesis must be
objective, which facilitates objectivity in data
collection & keeps the research activity free
from researcher value - judgment.
Specificity:
It should be specific, not
general, & should explain the expected
relations between variables. For
example, regular yoga reduces stress.
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9. Count…
Relevant:
The hypothesis should be relevant to the
problem being studied as well as the objectives of the
study. Hypothesis must have relevance with theory
under test in a research process.
Testability:
Hypothesis should be testable &
should not be a moral judgment. It must be
directly/indirectly observable & measurable. The
researcher can set up a situation that permits one to
assess if it is true or false. It must be verifiable. For
example, a statement such as ‘bad partners produce
bad children’. This sort of hypothesis cannot be
tested.
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Consistency:
A hypothesis should be consistent
with an existing body of theories, research
findings, & other hypotheses. It should
correspond with existing knowledge.
Simplicity:
A hypothesis should be formulated in
simple & understandable terms. It should
require fewer conditions & assumptions.
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Availability of techniques:
The researchers must make sure that
methods are available for testing their
proposed hypotheses
Purposiveness:
The researcher must formulate only
purposeful hypotheses, which has relevance
with research problem & objectives.
Verifiability:
A good hypothesis can be actually
verified in practical terms.
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Profundity of effect:
A good hypothesis should have
profound effect upon a variety of research
variables.
Economical:
The expenditure of money & the time
can be controlled if the hypotheses
underlying the research undertaken is good.
www.drjayeshpatidar.blogspot.com
14. Theoretical or conceptual
frameworks:
The most important sources of hypotheses are
theoretical or conceptual frameworks developed for
the study.
Through a deductive approach these hypotheses are
drawn from theoretical or conceptual frameworks for
testing them.
For example, Roy’s adaptation Model is used in a
research study, where a hypothesis can be drawn
from a concept of the theoretical mode that ‘patient’s
adaptation to a chronic illness depends on
availability of social support for them.’
www.drjayeshpatidar.blogspot.com
15. Previous research:
Findings of the previous studies may be used for
framing the hypotheses for another study.
For example, in a small sample descriptive study, a
researcher found that a number of patients
admitted with coronary artery disease had
increased body mass index.
In another research study, a researcher may use
this finding to formulate a hypothesis as ‘Obese
patients have increased risk for development of
coronary artery disease’.
www.drjayeshpatidar.blogspot.com
16. Real-life experiences:
Real-life experiences also contribute in the
formulation of hypotheses for research
studies.
For example, Newton had a life-changing
experience of the falling of an apple &
formulated a hypothesis that earth attracts
all the mass towards its centre, through
several researchers were conducted before
generating a law of central gravity.
www.drjayeshpatidar.blogspot.com
17. Academic literature
Academic literature is based on formal
theories, empirical
evidences, experiences, observation, &
conceptualizations of academicians.
These literatures may serve as good
sources for formulating hypotheses for
research studies.
www.drjayeshpatidar.blogspot.com
19. Simple & complex hypothesis
Simple hypothesis:
It is a statement which reflects the relationship between
two variables.
For example, ‘the lower the level of hemoglobin, the
higher is the risk of infection among postpartum
women’.
Complex hypothesis:
It is a statement which reflects the relationship between
more than two variables.
For example, ‘satisfaction is higher among patients who
are older & dwelling in rural area than those who are
younger & dwelling in urban area’.
www.drjayeshpatidar.blogspot.com
20. Associative & causal hypothesis
Associative hypothesis:
It reflects a relationship between variables that occurs or
exists in natural settings without manipulation.
This hypothesis is used in correlational research studies
Examples of associative
hypothesis
prediction
Communication skills of health
care providers & cost of care
related to the satisfaction of
patients
Predicts relationship
among variables but
not the type of
relationship
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Causal hypothesis:
It predicts the cause-and-effect relationship between
two or more dependent & independent variables in
experimental or interventional setting, where
independent variable is manipulated by research to
examine the effect on the dependent variable.
The causal hypothesis reflects the measurement of
dependent variable to examine the effect of dependent
variable, which is manipulated by the researcher(s).
For examples, prevalence of pin site infection is lower
in patients who receive pin site care with hydrogen
proxidide as compared to patients who receive the pin
site care with Betadine solution.
www.drjayeshpatidar.blogspot.com
22. Directional & nondirectional hypothesis
Directional hypothesis:
It specifies not only the existence, but also the expected
direction of the relationship between variables.
Directional hypothesis states the nature of the
relationship between two or more variables such as
positive, negative, or no relationship.
To express the direction of relationship between
variables, the directional terms are used to state the
hypothesis such as
positive, negative, less, more, increased, decreased, great
er, higher, lower, etc.
For examples, ‘there is a positive relationship between
years of nursing experience & job satisfaction among
nurses.
www.drjayeshpatidar.blogspot.com
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Nondirectional Hypothesis:
It reflects the relationship between two or more
variables, but is does not specify the anticipated
direction & nature of relationship such as positive or
negative.
It indicates the existence of relationship between the
variables.
For example, ‘there is relationship between years of
nursing experience & job satisfaction among nurses.
www.drjayeshpatidar.blogspot.com
24. Null & research hypothesis:
Null hypothesis (H0):
It is also known as statistical hypothesis & is used for
statistical testing & interpretation of statistical
outcomes.
It states the existence of no relationship between the
independent & dependent variables.
For example, ‘there is no relationship between smoking &
the incidence of coronary artery disease’.
Research hypothesis (H1):
It states the existence of relationship between two or
more variables.
For examples, ‘there is relationship between smoking &
incidence of lung cancer.
www.drjayeshpatidar.blogspot.com