The video tutorial, presented by Jessica from Scribbr, explains how to formulate a hypothesis. It begins with an introduction to the concept of a hypothesis, emphasizing that it is a prediction based on existing knowledge. The tutorial outlines six steps to create a strong hypothesis: asking a focused research question, conducting preliminary research, formulating the hypothesis, refining it to be specific and testable, phrasing it in different ways, and writing a null hypothesis. The video concludes with a call to action for viewers to engage with the content and explore further resources.

What is a hypothesis?

• An untestable idea

• A proven fact

• A tentative statement based on existing knowledge

• A random guess

What is the first step in formulating a hypothesis?

• Conducting experiments

• Asking a research question

• Writing a conclusion

• Collecting data

What should you do after asking a research question?

• Analyze data

• Write the conclusion

• Conduct preliminary research

• Formulate the hypothesis

What is an example of a preliminary research finding about apples?

• Apples are high in vitamin C

• Apples are expensive

• Apples are not nutritious

• Apples are rare

What is the third step in formulating a hypothesis?

• Conducting experiments

• Formulating the hypothesis

• Writing the conclusion

• Refining the hypothesis

What should a refined hypothesis include?

• Unrelated variables

• Specific and testable variables

• A random guess

• A broad statement

How can you phrase a hypothesis in the if-then form?

• Apples are nutritious

• Daily apple consumption is good

• People over 60 who consume an apple daily are healthier

• If people over 60 consume an apple daily, then they will visit the doctor less frequently

What is another way to phrase a hypothesis?

• In terms of a correlation or effect

• As an untestable idea

• As a random guess

• As a broad statement

Tags

NGSS.HS-LS2-3

NGSS.HS-PS1-2

What is the purpose of a null hypothesis?

• To assume there is an effect between variables

• To collect data

• To assume there is no effect between variables

• To prove the hypothesis

What is an example of a null hypothesis in this context?

• Daily apple consumption in over-60s will have no effect on the frequency of doctor’s visits

• Daily apple consumption in over-60s will reduce doctor’s visits

• Apples are nutritious

• Daily apple consumption is beneficial