formulating research hypothesis ppt

• My presentations

Auth with social network:

Download presentation

We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!

Presentation is loading. Please wait.

Formulation of hypothesis and testing

Published by Francis Lee Modified over 6 years ago

Similar presentations

Presentation on theme: "Formulation of hypothesis and testing"— Presentation transcript:

1 COMM 301: Empirical Research in Communication Lecture 15 – Hypothesis Testing Kwan M Lee.

Chapter 9 Hypothesis Testing Understandable Statistics Ninth Edition

Research Methods in MIS

Chapter 3 Hypothesis Testing. Curriculum Object Specified the problem based the form of hypothesis Student can arrange for hypothesis step Analyze a problem.

Statistical hypothesis testing – Inferential statistics I.

Inferential Statistics

Section 2: Science as a Process

© 2008 McGraw-Hill Higher Education The Statistical Imagination Chapter 9. Hypothesis Testing I: The Six Steps of Statistical Inference.

Hypothesis Testing.

Section 9.1 Introduction to Statistical Tests 9.1 / 1 Hypothesis testing is used to make decisions concerning the value of a parameter.

Fundamentals of Data Analysis Lecture 4 Testing of statistical hypotheses.

Copyright © Cengage Learning. All rights reserved. 8 Introduction to Statistical Inferences.

RE - SEARCH ---- CAREFUL SEARCH OR ENQUIRY INTO SUBJECT TO DISCOVER FACTS OR INVESTIGATE.

LECTURE 3 RESEARCH METHODOLOGY Research framework and Hypotheses development.

Constructing Hypothesis Week 7 Department of RS and GISc, Institute of Space Technology.

Introduction to Earth Science Section 2 Section 2: Science as a Process Preview Key Ideas Behavior of Natural Systems Scientific Methods Scientific Measurements.

Academic Research Academic Research Dr Kishor Bhanushali M

HYPOTHESIS TESTING Null Hypothesis and Research Hypothesis ?

Scientific Methods and Terminology. Scientific methods are The most reliable means to ensure that experiments produce reliable information in response.

©2010 John Wiley and Sons Chapter 2 Research Methods in Human-Computer Interaction Chapter 2- Experimental Research.

About project

© 2024 SlidePlayer.com Inc. All rights reserved.

How to Develop a Good Research Hypothesis

The story of a research study begins by asking a question. Researchers all around the globe are asking curious questions and formulating research hypothesis. However, whether the research study provides an effective conclusion depends on how well one develops a good research hypothesis. Research hypothesis examples could help researchers get an idea as to how to write a good research hypothesis.

This blog will help you understand what is a research hypothesis, its characteristics and, how to formulate a research hypothesis

Table of Contents

What is Hypothesis?

Hypothesis is an assumption or an idea proposed for the sake of argument so that it can be tested. It is a precise, testable statement of what the researchers predict will be outcome of the study.  Hypothesis usually involves proposing a relationship between two variables: the independent variable (what the researchers change) and the dependent variable (what the research measures).

What is a Research Hypothesis?

Research hypothesis is a statement that introduces a research question and proposes an expected result. It is an integral part of the scientific method that forms the basis of scientific experiments. Therefore, you need to be careful and thorough when building your research hypothesis. A minor flaw in the construction of your hypothesis could have an adverse effect on your experiment. In research, there is a convention that the hypothesis is written in two forms, the null hypothesis, and the alternative hypothesis (called the experimental hypothesis when the method of investigation is an experiment).

Characteristics of a Good Research Hypothesis

As the hypothesis is specific, there is a testable prediction about what you expect to happen in a study. You may consider drawing hypothesis from previously published research based on the theory.

A good research hypothesis involves more effort than just a guess. In particular, your hypothesis may begin with a question that could be further explored through background research.

To help you formulate a promising research hypothesis, you should ask yourself the following questions:

• Is the language clear and focused?
• What is the relationship between your hypothesis and your research topic?
• Is your hypothesis testable? If yes, then how?
• What are the possible explanations that you might want to explore?
• Does your hypothesis include both an independent and dependent variable?
• Can you manipulate your variables without hampering the ethical standards?
• Does your research predict the relationship and outcome?
• Is your research simple and concise (avoids wordiness)?
• Is it clear with no ambiguity or assumptions about the readers’ knowledge
• Is your research observable and testable results?
• Is it relevant and specific to the research question or problem?

The questions listed above can be used as a checklist to make sure your hypothesis is based on a solid foundation. Furthermore, it can help you identify weaknesses in your hypothesis and revise it if necessary.

Source: Educational Hub

How to formulate a research hypothesis.

A testable hypothesis is not a simple statement. It is rather an intricate statement that needs to offer a clear introduction to a scientific experiment, its intentions, and the possible outcomes. However, there are some important things to consider when building a compelling hypothesis.

1. State the problem that you are trying to solve.

Make sure that the hypothesis clearly defines the topic and the focus of the experiment.

2. Try to write the hypothesis as an if-then statement.

Follow this template: If a specific action is taken, then a certain outcome is expected.

3. Define the variables

Independent variables are the ones that are manipulated, controlled, or changed. Independent variables are isolated from other factors of the study.

Dependent variables , as the name suggests are dependent on other factors of the study. They are influenced by the change in independent variable.

4. Scrutinize the hypothesis

Evaluate assumptions, predictions, and evidence rigorously to refine your understanding.

Types of Research Hypothesis

The types of research hypothesis are stated below:

1. Simple Hypothesis

It predicts the relationship between a single dependent variable and a single independent variable.

2. Complex Hypothesis

It predicts the relationship between two or more independent and dependent variables.

3. Directional Hypothesis

It specifies the expected direction to be followed to determine the relationship between variables and is derived from theory. Furthermore, it implies the researcher’s intellectual commitment to a particular outcome.

4. Non-directional Hypothesis

It does not predict the exact direction or nature of the relationship between the two variables. The non-directional hypothesis is used when there is no theory involved or when findings contradict previous research.

5. Associative and Causal Hypothesis

The associative hypothesis defines interdependency between variables. A change in one variable results in the change of the other variable. On the other hand, the causal hypothesis proposes an effect on the dependent due to manipulation of the independent variable.

6. Null Hypothesis

Null hypothesis states a negative statement to support the researcher’s findings that there is no relationship between two variables. There will be no changes in the dependent variable due the manipulation of the independent variable. Furthermore, it states results are due to chance and are not significant in terms of supporting the idea being investigated.

7. Alternative Hypothesis

It states that there is a relationship between the two variables of the study and that the results are significant to the research topic. An experimental hypothesis predicts what changes will take place in the dependent variable when the independent variable is manipulated. Also, it states that the results are not due to chance and that they are significant in terms of supporting the theory being investigated.

Research Hypothesis Examples of Independent and Dependent Variables

Research Hypothesis Example 1 The greater number of coal plants in a region (independent variable) increases water pollution (dependent variable). If you change the independent variable (building more coal factories), it will change the dependent variable (amount of water pollution).

Research Hypothesis Example 2 What is the effect of diet or regular soda (independent variable) on blood sugar levels (dependent variable)? If you change the independent variable (the type of soda you consume), it will change the dependent variable (blood sugar levels)

You should not ignore the importance of the above steps. The validity of your experiment and its results rely on a robust testable hypothesis. Developing a strong testable hypothesis has few advantages, it compels us to think intensely and specifically about the outcomes of a study. Consequently, it enables us to understand the implication of the question and the different variables involved in the study. Furthermore, it helps us to make precise predictions based on prior research. Hence, forming a hypothesis would be of great value to the research. Here are some good examples of testable hypotheses.

More importantly, you need to build a robust testable research hypothesis for your scientific experiments. A testable hypothesis is a hypothesis that can be proved or disproved as a result of experimentation.

Importance of a Testable Hypothesis

To devise and perform an experiment using scientific method, you need to make sure that your hypothesis is testable. To be considered testable, some essential criteria must be met:

• There must be a possibility to prove that the hypothesis is true.
• There must be a possibility to prove that the hypothesis is false.
• The results of the hypothesis must be reproducible.

Without these criteria, the hypothesis and the results will be vague. As a result, the experiment will not prove or disprove anything significant.

What are your experiences with building hypotheses for scientific experiments? What challenges did you face? How did you overcome these challenges? Please share your thoughts with us in the comments section.

Frequently Asked Questions

The steps to write a research hypothesis are: 1. Stating the problem: Ensure that the hypothesis defines the research problem 2. Writing a hypothesis as an 'if-then' statement: Include the action and the expected outcome of your study by following a ‘if-then’ structure. 3. Defining the variables: Define the variables as Dependent or Independent based on their dependency to other factors. 4. Scrutinizing the hypothesis: Identify the type of your hypothesis

Hypothesis testing is a statistical tool which is used to make inferences about a population data to draw conclusions for a particular hypothesis.

Hypothesis in statistics is a formal statement about the nature of a population within a structured framework of a statistical model. It is used to test an existing hypothesis by studying a population.

Research hypothesis is a statement that introduces a research question and proposes an expected result. It forms the basis of scientific experiments.

The different types of hypothesis in research are: • Null hypothesis: Null hypothesis is a negative statement to support the researcher’s findings that there is no relationship between two variables. • Alternate hypothesis: Alternate hypothesis predicts the relationship between the two variables of the study. • Directional hypothesis: Directional hypothesis specifies the expected direction to be followed to determine the relationship between variables. • Non-directional hypothesis: Non-directional hypothesis does not predict the exact direction or nature of the relationship between the two variables. • Simple hypothesis: Simple hypothesis predicts the relationship between a single dependent variable and a single independent variable. • Complex hypothesis: Complex hypothesis predicts the relationship between two or more independent and dependent variables. • Associative and casual hypothesis: Associative and casual hypothesis predicts the relationship between two or more independent and dependent variables. • Empirical hypothesis: Empirical hypothesis can be tested via experiments and observation. • Statistical hypothesis: A statistical hypothesis utilizes statistical models to draw conclusions about broader populations.

Wow! You really simplified your explanation that even dummies would find it easy to comprehend. Thank you so much.

Thanks a lot for your valuable guidance.

I enjoy reading the post. Hypotheses are actually an intrinsic part in a study. It bridges the research question and the methodology of the study.

Useful piece!

This is awesome.Wow.

It very interesting to read the topic, can you guide me any specific example of hypothesis process establish throw the Demand and supply of the specific product in market

Nicely explained

It is really a useful for me Kindly give some examples of hypothesis

It was a well explained content ,can you please give me an example with the null and alternative hypothesis illustrated

clear and concise. thanks.

So Good so Amazing

Good to learn

Thanks a lot for explaining to my level of understanding

Explained well and in simple terms. Quick read! Thank you

It awesome. It has really positioned me in my research project

Rate this article Cancel Reply

Your email address will not be published.

Enago Academy's Most Popular Articles

• Reporting Research

Choosing the Right Analytical Approach: Thematic analysis vs. content analysis for data interpretation

In research, choosing the right approach to understand data is crucial for deriving meaningful insights.…

Comparing Cross Sectional and Longitudinal Studies: 5 steps for choosing the right approach

The process of choosing the right research design can put ourselves at the crossroads of…

• Industry News

COPE Forum Discussion Highlights Challenges and Urges Clarity in Institutional Authorship Standards

The COPE forum discussion held in December 2023 initiated with a fundamental question — is…

• Career Corner

Unlocking the Power of Networking in Academic Conferences

Embarking on your first academic conference experience? Fear not, we got you covered! Academic conferences…

Research Recommendations – Guiding policy-makers for evidence-based decision making

Research recommendations play a crucial role in guiding scholars and researchers toward fruitful avenues of…

Choosing the Right Analytical Approach: Thematic analysis vs. content analysis for…

Comparing Cross Sectional and Longitudinal Studies: 5 steps for choosing the right…

How to Design Effective Research Questionnaires for Robust Findings

Sign-up to read more

Subscribe for free to get unrestricted access to all our resources on research writing and academic publishing including:

• 2000+ blog articles
• 50+ Webinars
• 10+ Expert podcasts
• 50+ Infographics
• 10+ Checklists
• Research Guides

We hate spam too. We promise to protect your privacy and never spam you.

I am looking for Editing/ Proofreading services for my manuscript Tentative date of next journal submission:

What should universities' stance be on AI tools in research and academic writing?

Formulating Research Hypothesis and Objective

• First Online: 01 March 2024

Cite this chapter

• Animesh Hazari 2  

61 Accesses

Formulating a research hypothesis and objectives is the first and foremost step in any research process as they provide a clear direction and purpose for your study. In this chapter, we shall learn about formulating an ideal research hypothesis and objectives. Formulation and development of the hypothesis and objectives take place under the following key steps:

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

• Available as PDF
• Read on any device
• Instant download
• Own it forever
• Available as EPUB and PDF
• Durable hardcover edition
• Dispatched in 3 to 5 business days
• Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Author information

Authors and affiliations.

College of Health Sciences, Gulf Medical University, Ajman, Ajman, United Arab Emirates

Animesh Hazari

You can also search for this author in PubMed   Google Scholar

Rights and permissions

Reprints and permissions

Copyright information

© 2023 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

About this chapter

Hazari, A. (2023). Formulating Research Hypothesis and Objective. In: Research Methodology for Allied Health Professionals. Springer, Singapore. https://doi.org/10.1007/978-981-99-8925-6_4

Download citation

DOI : https://doi.org/10.1007/978-981-99-8925-6_4

Published : 01 March 2024

Publisher Name : Springer, Singapore

Print ISBN : 978-981-99-8924-9

Online ISBN : 978-981-99-8925-6

eBook Packages : Medicine Medicine (R0)

Share this chapter

Anyone you share the following link with will be able to read this content:

Sorry, a shareable link is not currently available for this article.

Provided by the Springer Nature SharedIt content-sharing initiative

• Publish with us

Policies and ethics

• Find a journal
• Track your research

Got any suggestions?

We want to hear from you! Send us a message and help improve Slidesgo

Top searches

Trending searches

18 templates

26 templates

16 templates

17 templates

pediatrician

27 templates

41 templates

Formulating a Research Problem for University Students

Formulating a research problem for university students presentation, free google slides theme, powerpoint template, and canva presentation template.

Download the "Formulating a Research Problem for University Students" presentation for PowerPoint or Google Slides. As university curricula increasingly incorporate digital tools and platforms, this template has been designed to integrate with presentation software, online learning management systems, or referencing software, enhancing the overall efficiency and effectiveness of student work. Edit this Google Slides theme and PowerPoint template to create an accessible and highly professional resource that aligns with the rigorous academic expectations at the higher education level.

Features of this template

• 100% editable and easy to modify
• Different slides to impress your audience
• Contains easy-to-edit graphics such as graphs, maps, tables, timelines and mockups
• Includes 500+ icons and Flaticon’s extension for customizing your slides
• Designed to be used in Google Slides, Canva, and Microsoft PowerPoint
• Includes information about fonts, colors, and credits of the resources used

How can I use the template?

Am I free to use the templates?

How to attribute?

Attribution required If you are a free user, you must attribute Slidesgo by keeping the slide where the credits appear. How to attribute?

Related posts on our blog.

How to Add, Duplicate, Move, Delete or Hide Slides in Google Slides

How to Change Layouts in PowerPoint

How to Change the Slide Size in Google Slides

Related presentations.

Premium template

Unlock this template and gain unlimited access

Register for free and start editing online

Formulating a Research Problem

Jul 26, 2014

2.92k likes | 8.31k Views

Formulating a Research Problem. To be Discussed!!!. The Research Problem The importance of Formulating a Research Problem Sources of Research Problem Consideration in selecting a research problem Steps in the formulation of a research problem Establishing operational definitions.

Share Presentation

• most research studies
• research study
• study population
• your expertise

Presentation Transcript

To be Discussed!!! • The Research Problem • The importance of Formulating a Research Problem • Sources of Research Problem • Consideration in selecting a research problem • Steps in the formulation of a research problem • Establishing operational definitions

The Research Problem Process of problem formulation: • Your expertise in research methodology • Your knowledge of the subject area • Your understanding of the issues to be examined • The extent to which the focus of your study in predetermined

The Research Problem • Specific idea required for the basis of your inquiry • Make sure that idea is researchable • Important that not all question can be transformed into research problems and some may prove to be extremely difficult to study • Powers, Meenaghan & Twoomey said; Potential research questions may occur to us on a regular basis, but the process of formulating them in a meaningful way is not at all an easy task

The Research Problem • It requires: • Considerable knowledge of subject area and research methodology • First identifying and then specifying a research problem might seem like research tasks that ought to be easy and quickly accomplished

The Research Problem • The importance of Research Problem • Identification of destination before undertaking a journey. • Kerlinger said: • If one wants to solve a problem, one must generally know what the problem is. It can be said that a large part of the problem lies in knowing what one is trying to do • Must have clear idea about what you want to find

The Research Problem • The importance of Research Problem • The research can take number of forms • The way you formulate a problem determines almost every step that follows: • The type of study design that can be used • The type of sampling strategy that can be employed • The research instrument that can be used or developed • The type of analysis that can be undertaken

The research problem • The importance: • Formulation of a problem is like the input into a study and the ‘output’ the quality of the contents of the research report and validity • GI-GO • In the beginning you may become more confused but this normal and a sign of progression. • Remember: confusion if often but a first step towards clarity • Remember: this is the most crucial step

Sources of Research Problems • Four P’s • People • Problems • Programs • Phenomena

Sources of Research problems • Most research studies are based on at-least combination of two p’sand it varies from study to study • You may select a group of individual ( a group or a community as such - “people”), either the existence of certain issues or problems relating to their lives, to ascertain attitude of a group of people towards an issue “Problem”; to establish existence of a regularity “phenomenon” or to evaluate the effectiveness of an intervention “program”

Sources of Research problems • Focus: • Study of an issue, an association or a phenomenon for example; the relationship between unemployment and street crime, smoking and cancer or fertility and mortality, which is done on the basis of information collected from individuals, groups, communities or organizations. • Every research study has two aspects • The study population • The subject area

Sources of Research problems

Considerations in selecting a research problem • Interest • Magnitude • Measurement of concepts • Level of expertise • Relevance • Availability of data • Ethical issues

Steps in the formulation of a research problem • Step 1: identify a broad field or subject area of interest to you • Step 2: Dissect the broad area into subareas • Step 3: Select what is of most interest to you • Step 4: Raise research questions • Step 5: Formulate objectives • Step 6: Assess your objectives • Step 7: Double-check

The Formulation of Objectives • Objectives are goals you set out to attain in your study. • Two headings • Main objectives • Sub-objectives The main objective is an overall statement of the thrust of study The sub-objectives are the specific aspects of the topic that you want to investigate within the main framework of your study. The objectives should start with words such as ‘to determine ‘, ‘to find out’, ‘to ascertain’, ‘to measure’, ‘to explore’

• More by User

Formulating Research Problem

Formulating Research Problem. COMMUNITY RESEARCH PROGRAM 20 12. Introduction. Research problem: Uncertainty about something in the population To be resolved By making measurement. Choosing research questions. Infer. Infer. Truth in the universe. Truth in the study.

1.45k views • 19 slides

Formulating the research design

Formulating the research design. Research design - the general plan of how you will go about answering your research questions Objectives Sources Constraints p hilosophy = question = design. The purpose of your research. Exploratory studies : good means of finding out

930 views • 22 slides

Formulating Your Research: Part I

Formulating Your Research: Part I. Barron J. Orr, PhD University of Arizona March 22, 2014. For: Dissertation Writing and Research Series National Graduate Institute for Policy Studies (GRIPS ) Tokyo, Japan.

1.43k views • 85 slides

Formulating Your Research: Part II

Formulating Your Research: Part II. Barron J. Orr, PhD University of Arizona March 23, 2014. For: Dissertation Writing and Research Series National Graduate Institute for Policy Studies (GRIPS ) Tokyo, Japan. Formulating Your Research (Part II). Conceptual scientific frameworks

1.4k views • 110 slides

Formulating Research Problem. COMMUNITY RESEARCH PROGRAM 20 12. Introduction . Research problem: Uncertainty about something in the population To be resolved By making measurement. Choosing research questions. Infer. Infer. Truth in the universe. Truth in the study.

1.14k views • 19 slides

Formulating a Research Question

Formulating a Research Question. October 2012. A 7-Point Summary. A research topic usually deals with at least two concepts or ideas. The focus of the research topic is usually the relationship between the two concepts.

508 views • 6 slides

Formulating a Thesis

Formulating a Thesis. Mrs. Rosolino. The strength of any essay or paper you write directly correlates to the strength of your thesis and whether or not your statement of purpose and insight is indeed an arguable point. The Importance of a Thesis.

231 views • 7 slides

Formulating a Research Question. Spring 2014. Doing research . A research topic usually deals with at least two concepts or ideas. The focus of the research topic is usually the relationship between the two concepts.

812 views • 6 slides

Formulating research questions

Dr Alexandra Allan. Formulating research questions. Overview. Why are research questions important? What makes a good research question? What types of research questions exist? How do I begin to formulate my own questions?. Introduction. Research as a journey...

793 views • 23 slides

Formulating a Research Question. Sources We Use When Formulating a Research Question Include: Personal Experiences Stated Objectives of a Program Research Articles Theory Pragmatic Reasons Identify Research Question to Meet Qualifications of Grant. Own Experience .

921 views • 8 slides

Formulating a Research Plan

Formulating a Research Plan. Maureen Cahill and TJ Striepe January 2012. Introduction. Using tools from Legal Research & Writing Issue spotting Formulating issues for research Creating a research plan Identifying and finding resources Tracking results Finalizing research. Introduction.

836 views • 20 slides

Formulating a Hypothesis

Formulating a Hypothesis. It’s Science!. Hypothesis. A Hypothesis is an educated guess that is testable A Hypothesis is an assumption about a population parameter If, Then, Because (Hypothesis and Prediction) If, The, Because, How (Hypothesis, Prediction and Methods) www.sciencebuddies.org

598 views • 10 slides

Formulating The Problem of

Formulating The Problem of. Compiler-Assisted Cache Replacement. Hongbo Yang. Agenda. Background: Memory hierarchy, ISA with cache hints Problem definition: How should compiler give cache hint to minimize cache miss rate? Case Study for Relationship Between Reference Window and Cache Misses

381 views • 25 slides

Selecting a Research Problem

Selecting a Research Problem. Problem!. A question raised for inquiry, consideration or solution A complex unsettled question. Source: Webster’s 7 th New Collegiate Dictionary. What do we do with Problems?. Ignore them Talk about them Try to solve them. What is a Research Problem?.

753 views • 24 slides

Formulating and Clarifying Research Topics

Formulating and Clarifying Research Topics. MSc. Nguyen Duc Hoa Cuong [email protected] Skype: Insight.Vietnam Cell: 0912120860. Objectives. Generate ideas that will help in the choice of a suitable research topic Identify the attributes of a good research topic

674 views • 13 slides

UNIT 2: FORMULATING THE OPTIMIZATION PROBLEM

UNIT 2: FORMULATING THE OPTIMIZATION PROBLEM. Variables The objective function Equality constraints Inequality constraints Degrees of freedom Formulating the problem. FORMULATING THE OPTIMIZATION PROBLEM. This is the general formulation that we will be using throughout the course.

968 views • 34 slides

Formulating the Research Design

Formulating the Research Design. Faisal Abbas, PhD Lecture 9 th. Action Research. Focuses on and emphasizes the purpose of the research: the management of change.

321 views • 14 slides

Selecting a Research Problem. By: Sooad K. Al- Daihan. More Factors make the project “outstanding”…. First, it must ask questions. Second, if possible, the project should have the potential to yield a seminal observation. What do we do with Problems?. Ignore them Talk about them

208 views • 18 slides

Formulating a Research Topic

Formulating a Research Topic. Abhinay Sawant February 18, 2009 Economics 201FS. Update from Last Time. Fixed programs: Z-Scores Tri-Power Quarticity Realized Volatility Signature Plots Still Coarse Sampling: Currently, sampling frequency = 8 min

359 views • 16 slides

• Preferences

Formulating Hypotheses - PowerPoint PPT Presentation

Formulating Hypotheses

An hypothesis is really a temporary explanation, a kind of educated guess about ... he or she predicts that carbon dioxide can be detected as an organism digests food. ... – powerpoint ppt presentation.

• Science advances by formulating and testing hypotheses. An hypothesis is really a temporary explanation, a kind of educated guess about what will happen under certain conditions.
• A hypothesis usually begins as an answer to a question.
• Question Do plants need light to grow?
• Ex. If green plants need light to grow, then only plants kept in light will display growth.
• Most times it is an If then statement.
• But ALWAYS is a statement that has a definitive answer, or one that can be answered yes or no.
• Do living things give off CO2 when they digest food?
• A scientist thinks that living things give off carbon dioxide gas as they break down food. He or she predicts that carbon dioxide can be detected as an organism digests food.
• Some students were investigating what made their classmates get colds. One student believed that those who took vitamin C every day got fewer colds than the rest of the students.
• Another student was interested in raising tropical fish. She believed that fish that were given Phillip Chons Formula 1 food would produce more offspring than those fed Kaitlyn Gortners Golden Flakes.
• You can prove them to be untrue, but you cannot prove them to be true.
• This means you can only support your hypothesis.
• The more a hypothesis is supported, the greater its power to explain the phenomenon.
• Bacteria are microscopic creatures found almost everywhere. They are useful to biologists in many different kinds of experiments. For each of the following problems involving bacteria, form an hypothesis to make a prediction.
• Does the temperature at which bacteria are grown affect their rate of reproduction?
• Does using up the nutrients they are feeding on affect the rate of reproduction of bacteria?
• Some bacteria require certain vitamins in the material in which they are grown. Does bacterium X require vitamin B12 for reproduction?
• Does aspirin inhibit the reproduction of bacteria?
• The questions and hypotheses you develop must be typed.
• I do not accept hand-written hypotheses.
• STD LAB set up follows.
• Tomorrow we will be mating with each other. You will have five partners that you will share bodily fluids with (one at a time). One individual in class will be contaminated with an STD at the start of the experiment.
• What question(s) could be asked about the spread of the disease in class? Choose one question to answer. Next, write a testable hypothesis that predicts the results (a best guess answer to the question).
• Your hypothesis must be signed off by me before you can begin the lab.

PowerShow.com is a leading presentation sharing website. It has millions of presentations already uploaded and available with 1,000s more being uploaded by its users every day. Whatever your area of interest, here you’ll be able to find and view presentations you’ll love and possibly download. And, best of all, it is completely free and easy to use.

You might even have a presentation you’d like to share with others. If so, just upload it to PowerShow.com. We’ll convert it to an HTML5 slideshow that includes all the media types you’ve already added: audio, video, music, pictures, animations and transition effects. Then you can share it with your target audience as well as PowerShow.com’s millions of monthly visitors. And, again, it’s all free.

About the Developers

PowerShow.com is brought to you by  CrystalGraphics , the award-winning developer and market-leading publisher of rich-media enhancement products for presentations. Our product offerings include millions of PowerPoint templates, diagrams, animated 3D characters and more.