1. 7 Studying People Qualitatively and Quantitatively

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3. 7 Studying People Qualitatively and Quantitatively Key Vocabulary data hypothesis qualitative quantitative sample size

4. 7 Studying People Qualitatively and Quantitatively Read the introduction and look for key ideas

5. 7 Studying People Qualitatively and Quantitatively How are qualitative and quantitative data used when testing a hypothesis about people?

6. 7 Studying People Qualitatively and Quantitatively What have you learned about experimental design that could help scientists study people scientifically? What kinds of measurements can be taken when testing people? What kinds of measurements are most useful when evaluating hypotheses? Record your thoughts in your notebook.

7. 7 Studying People Qualitatively and Quantitatively Complete the reading Be sure to answer the Stopping to Think questions.

8. 7 Studying People Qualitatively and Quantitatively Stopping to think 1 You hear your friend Yoshi tell someone that a hypothesis is the same as a guess. Explain whether you agree with Yoshi.

9. 7 Studying People Qualitatively and Quantitatively Stopping to think 2 Explain whether Dr. Goldberger provided enough evidence to prove that pellagra is not contagious.

10. 7 Studying People Qualitatively and Quantitatively Stopping to think 3 You notice a skateboard for sale on an Internet website. The price is good, but the website provides no picture or other information. What qualitative data would you like to have before you decide if you will buy it?

11. 7 Studying People Qualitatively and Quantitatively Stopping to think 4 Reread the description of your friend in the above paragraph. Create a list of each of her characteristics. Identify each characteristic as either qualitative or quantitative.

12. 7 Studying People Qualitatively and Quantitatively Stopping to think 5 a. What kinds of qualitative data are useful in studying people scientifically? Provide at least two examples. b. What kinds of quantitative data are useful in studying people scientifically? Provide at least two examples.

13. 7 Studying People Qualitatively and Quantitatively Were the data that you collected during Activity 5, “Can You Feel the Difference?” qualitative or quantitative? Share your thoughts with the class.

14. 7 Studying People Qualitatively and Quantitatively Analysis question 1 You decide to take a medicine for your upset stomach. You have a choice of two medicines. Both medicines are advertised as safe based on clinical trials. Medicine A was tested on 100 people. Medicine B was tested on 10,000 people.

15. 7 Studying People Qualitatively and Quantitatively Analysis question 1 a. Which medicine would you take? Explain. Support your answer with evidence. b. Was your decision based on qualitative or quantitative information?

16. 7 Studying People Qualitatively and Quantitatively Analysis question 2 You’re a nurse at a local hospital. While you are there, you read a patient chart containing the data below. Identify each item of patient data as quantitative or qualitative.

17. 7 Studying People Qualitatively and Quantitatively Analysis question 3 Imagine conducting a clinical trial of a headache medicine. Based on your research, you hypothesize that the medicine will successfully treat headaches in people. Before the Food and Drug Administration (FDA) will approve your study, you must explain the type of data you will collect to test your hypothesis.

18. 7 Studying People Qualitatively and Quantitatively Analysis question 3 a. List at least three kinds of qualitative data you will collect. Hint: Think about what information you would collect from the volunteers and what information you would collect about the medicine in order to determine the safety and effectiveness of the medicine.

19. 7 Studying People Qualitatively and Quantitatively Analysis question 3 b. List at least three kinds of quantitative data you will collect. Hint: Think about what information you would collect from the volunteers and what information you would collect about the medicine in order to determine the safety and effectiveness of the medicine.

20. 7 Studying People Qualitatively and Quantitatively Analysis question 4 Fill in the “After” column for statements 13–16 on Student Sheet 1.1, “Anticipation Guide: Ideas about Experimental Design.” Did your thinking change?

21. 7 Studying People Qualitatively and Quantitatively Analysis question 5 Think about the activities you have done so far in this unit. What are the common elements of a well-designed experiment?

22. 7 Studying People Qualitatively and Quantitatively Analysis question 6 Reflection: Both qualitative and quantitative data provide evidence for making decisions. How have you used each of these types of data to make decisions? Describe your experiences.

23. 7 Studying People Qualitatively and Quantitatively How are qualitative and quantitative data used when testing a hypothesis about people?

24. 7 Studying People Qualitatively and Quantitatively Key vocabulary definitions Data - Factual information derived from scientific experiments. Hypothesis - A possible explanation for observations, facts, or events, that may be tested, verified, or answered by further investigation.

25. 7 Studying People Qualitatively and Quantitatively Key vocabulary definitions Qualitative - Information that is concerned with qualities, not numbers or quantities. Quantitative - Information that is based on numerical measurements. Sample size - The number of observations in a sample.