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How To Write A Hypothesis: A Step-by-Step Guide And Examples

Researchers deal with lots of unknowns. Intellectual assumptions and tentative explanations are essential for dealing with all such unknowns. It is these assumptions and explanations that form the basis of a research hypothesis. Simply put, a research hypothesis is the researcher's educated guess about the research subject or an aspect of the subject.

Understanding the characteristics and nuances of developing a good research hypothesis is vital for any researcher. This article presents vital insights.

A Brief Introduction to Research Hypothesis

A hypothesis is an assumption/a premise/a presumption/an estimation. You use your logic and ideas to hypothesize something, assuming about the research subject.

So, what is the connection between an experiment and its hypothesis?

Well, the connection’s critical. You test your premises using the experiment. The design of your experiment will be such that you can test your hypothesis successfully.

Here are some vital points to keep in mind.
  • The purpose of an experiment is to test, not prove, the hypothesis. You test its validity critically. If valid, you can assert your ideas using the findings of your experiment.
  • The aim of the research flows from the hypothesis. It defines your view and what you think about the subject of your research. Besides the aim, the hypothesis also informs the research methods.
  • The hypothesis is an educated guess. Your knowledge about the research topic, views & beliefs, research skills, and experience all play a part in its formulation. And you can create an exact one when you grasp the research question.
A clear structuring of the research question is, thus, the first step.
  • Not all kinds of research require a hypothesis. They are vital in deductive research, however as it involves testing of ideas and theories.
  • The experiment gathers proof for turning the hypothesis into a theory. Recall how we define theories as proven hypotheses backed by proof and logic in science.

The importance of the role of a hypothesis is crucial. It hints at clarity of ideas, good research, and analytical skills. It is your answer to the research question that is subject to testing.

So, what does a good hypothesis look like?

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The Nature & Characteristics of a Good Hypothesis

Hypotheses must be tested for their validity. A valid and tested research hypothesis means that there is a 100% chance you are going the right way. But what does it take to craft a good hypothesis? What are its features?

Here is a glimpse at the nature of a good research hypothesis.
  • A hypothesis should always be testable.
  • It must build upon concepts.
  • Hypothesis statements declare or present an idea, view, or understanding.  
  • The idea presented should be ready for testing.
  • Hypotheses should be able to reveal new insights. It must encourage further exploration.
  • They must act as the pivot of the analysis.
And here are the things to follow when developing your hypothesis.
  • The premise and concepts of a good hypothesis must always be testable.
  • It must not deflect or conflict with any laws of nature.
  • Ensure all of these in your hypotheses are clear, simple, and precise.
  • The surmise of an experiment is liable to be tested. Thus, you should be able to apply deductive reasoning to it.
  • It must be verbalized and easily understandable.
  • Hypothesis testing methods must be in the control of the researcher.
  • All hypotheses must have a specific focus. The narrower its scope and focus, the easier its verification.
  • A good hypothesis should clearly show the relationships between variables.
  • They must be testable within a reasonable amount of time.
  • Researchers must be able to deduce the problem/experiment design & goals using the hypothesis & their knowledge.
  • Specific, testable, concise, unbiased, generalized, and consistent are vital features of any research hypothesis.
  • The hypothesis should guide the study design, the research population, the target population, data collection, and analysis.

The above points shed light on the essentialities of an ideal hypothesis. So, what are the steps to creating an ideal hypothesis?

How To Develop a Good Research Hypothesis? The Process & Examples

Making the hypothesis is easy once you have a clear idea about what you are doing. Think of the research question and then how best to answer it. Research questions are broad and highlight the different variables to be studied. The hypothesis digs deeper and explores their relationships.

Here is how to develop a research question and then determine the hypothesis.

A. You must present a highly accurate assumption or prediction. For that, you have to study the research topic very minutely.

B. Gather enough data & info to grasp all aspects of the topic. This should also help you narrow things down and articulate the research focus in the form of a question.

C. The question flows from the topic, and the hypothesis flows from the question. This is why it is vital to define the question first. Your hypothesis is an educated answer to the question.

D. Ensure the following while developing 

a. Dependent and independent variables must find a place.

b. Highlight variable relationships.

c. Simplicity and conciseness are crucial.

d. It should not be dependent on any measure or procedure.

e. It should always be testable.

f.Should not violate any laws or ethical standards.

E. It is always better to conjure a simple than a complex one.

F. Falsifiability is another crucial criterion. Do not be afraid of disproving your hypothesis

G.  Avoid subjective terms and opinions.

H. The hypothesis must address issues or questions that proven laws cannot substantiate.

I. Be ready to change the premises.

J. There are several types of hypotheses. And there are diverse ways to present them.

Our essay writers for hire can help you create good hypotheses by providing a step-by-step guide and tips. Creating good hypothesis examples shouldn't be difficult for you. A few hypothesis examples can help you understand things better:

  • Hypothesis as a statement: "It is hypothesized that recognizing the right to euthanasia amounts to the protection of civil liberties."
  • Hypothesis as a question: “Will recognizing the right to euthanasia a protection of civil liberties?”
  • Qualitative Research Hypothesis: “How effective is high school sex education at reducing teen pregnancies?”

Weak nursing and midwifery management contribute to the death and abuse of women during childbirth in urban Tanzania.”

  • Quantitative Research hypothesis: "The problem-solving skills of students from X region are N times better than students from Y region."

"There is not a statistically significant difference between the performance of students who study more in the evening and those studying in the evening."

  • Scientific Research Hypothesis - Null Hypothesis “There should be no difference in the recalling abilities of children and adults.” Alternative Hypothesis  “Children will be better at recalling things than adults.”
  • Medical Research Hypothesis: Quality of life of cancer patients improves when they receive mindful intervention."

Intervention A will improve distress in cancer patients with clinical depression and anxiety at 12 weeks compared to simply control intervention.”

  • Statistical Research Hypothesis - Null Hypothesis: “There is no correlation between shoe size and height.”  Alternative Hypothesis: "There is a positive correlation between height and shoe size."
  • Social Science Research Hypothesis: High unemployment rates lead to higher crime rates in society." "High poverty equates to higher crime rates." "High illiteracy, unemployment, and poverty all link to higher crime rates."

As we wrap up, let us look at the major types of hypotheses in scientific research.

Examples of Hypothesis

Let's look at a few Hypothesis Examples to see how these steps come together to form hypotheses:

Example 1: Sociology

Research Question: Does exposure to violent television programs increase the likelihood of aggressive behavior in children?

Hypothesis: If children are exposed to violent television programs, then they are more likely to exhibit aggressive behavior because they may imitate the actions they see on television.

Example 2: Environmental Science

Research Question: How does the pH level of water affect the survival of aquatic organisms?

Hypothesis: If the pH level of water decreases (becomes more acidic), then the survival rate of aquatic organisms will decrease because many aquatic species are sensitive to changes in water acidity.

Example 3: Economics

Research Question: Does an increase in the minimum wage lead to higher unemployment rates among low-skilled workers?

Hypothesis: If the minimum wage is raised, then the unemployment rate among low-skilled workers will increase because employers may be less willing to hire at the higher wage, leading to job cuts or reduced hiring.

Example 4: Chemistry

Research Question: How does the concentration of a sugar solution affect the rate of fermentation by yeast?

Hypothesis: If the concentration of the sugar solution increases, then the rate of fermentation by yeast will also increase because yeast requires sugar as a substrate for fermentation, and a higher concentration provides more substrate for the reaction.

Example 5: Education

Research Question: Does the use of interactive educational software improve student performance in mathematics?

Hypothesis: If students use interactive educational software as part of their mathematics curriculum, then their performance in mathematics will improve because interactive tools engage students and reinforce learning.

These hypotheses illustrate how researchers formulate specific statements that suggest a relationship between variables or conditions and the expected outcomes of an experiment or study in their respective fields.

Types of Hypotheses

1. Null Hypothesis :

This kind suggests no relationship between the research variables. This is the default position or the status quo.

2. Alternative Hypothesis

This type conjectures a relationship that will be tested through research. Alternative premises are the researcher’s claims.

3. Directional & Non-Directional hypothesis :

The directional hypothesis predicts a positive or negative relation among research variables. These kinds provide clear indications about the nature of the relationship.

Non—directional hypotheses find a relationship but do not state the nature of it. They are used during exploratory analysis and when there’s little prior knowledge. Non-directional premises are more flexible and open.

4. Simple and Complex Hypothesis:

Simple hypotheses relate to two variables. Complex hypotheses bring together multiple variables and state a relationship among them.

 5. Statistical hypothesis:

Any conjecture that can be verified statistically is a statistical hypothesis. Statistical hypotheses make assumptions about a population that may or may not be true.

 6. Empirical or Working hypothesis:

The hypothesis being tested in an experiment is the empirical hypothesis. The term working means that the hypothesis is subject to change.

 Logical: This type cannot be tested and relies on logic for validation. They are found in philosophy and used to develop logical theories.

 Let us wrap this write-up with some tips on developing an astute hypothesis.

Some Tips & Practical Considerations

Research questions, hypotheses, and goals – they are all linked closely. The tips below will help you devise the three in tandem.

  • Carry out a critical literature review.
  • Stay updated with current trends & developments on the topic.
  • Get expert feedback when working on the research question.
  • When developing the hypothesis, always look at the question, your knowledge, and your research plan.
  • Ensure that the hypothesis can be proven wrong.
  • Do limit the number of conjectures.
  • Make sure to find and define the primary dependent & independent variables.
  • Design your study to test the hypothesis thoroughly.
  • Analytical measures and statistical methods must be able to test the hypothesis.


A good research hypothesis sets clear goals. It defines the best possible approaches and methods. The hypothesis guides the research and aids the researcher in their processes. It ties the research question, applicable theories, and objectives together.

The accuracy and effectiveness of your hypothesis substantiate the validity of your research. So, dig deep into a topic, do minute research, develop clear ideas, and define the research purpose minutely. It will help you come up with the best hypothesis possible.


Q.1. What is a hypothesis?

It is an educated guess, a hunch, or an intelligent assumption based on prior knowledge.

Q. 2. Give an example of a hypothesis.

Here is a very popular one: Tobacco consumption is harmful to health.

Q.3. What are the types of hypotheses?

The types are null, alternative, empirical, statistical, directional, non-directional, and logical hypotheses.

Q. 4. Define complex hypothesis. Give an example

A complex hypothesis identifies and/or predicts relationships among multiple variables.

A hypothesis example would be: "Consumption of drugs and alcohol are injurious to health."

Q. 5. What is an example of a null hypothesis?

Null hypotheses state no relation among study variables. An example can be:

There is likely no connection between industrialization and climate change.”

Q.6. What are the differences between a null and an alternative hypothesis?

The null hypothesis implies no relationship among variables. It assumes that the experiment will not support the researcher’s assumptions and nothing new will be discovered.

The alternative hypothesis states the researcher’s claims. This is the answer to the research question and what you are trying to prove as valid.

Q.7. How to write a hypothesis?

It should be clear, objective, logical, testable, specific, and falsifiable. The hypothesis must also be relevant to the research question.

Q.8. Differences between the research question and research hypothesis.

The research question is always broad and open-ended. The hypothesis goes deeper and looks into the specific factors affecting the topic.

Q.9. Can you provide an example of a research hypothesis?

Sure! A research hypothesis is a specific and testable prediction about the relationship between variables in a scientific study. Here's an example:

Research Hypothesis Example: "If students engage in regular physical exercise for at least 30 minutes a day, their academic performance will improve."

Q.10. What is a hypothesis statement in research?

A hypothesis statement is a clear and specific prediction about the relationship between variables in a scientific study. It serves as a key element in the research process, outlining the expected outcome of the investigation.

Read also about how to write an act exam to become even more experienced.

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