Lesson 4 4 Conducting a Survey to Collect

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Lesson 4. 4 – Conducting a Survey to Collect Two-Variable Data

Lesson 4. 4 – Conducting a Survey to Collect Two-Variable Data

Steps: 1. Choose a topic • Choose a topic that is related to twovariable

Steps: 1. Choose a topic • Choose a topic that is related to twovariable data • Possible examples?

Steps: 1. Choose a topic • • Choose a topic that is related to

Steps: 1. Choose a topic • • Choose a topic that is related to two-variable data Possible examples? • Write a research question Is there a correlation between _______ and _______? How does this differ from a hypothesis? •

Steps: 1. • • Choose a topic that is related to two-variable data Possible

Steps: 1. • • Choose a topic that is related to two-variable data Possible examples? Write a research question Is there a correlation between _______ and _______? How does this differ from a hypothesis? 2. Select a sample • What is the population? • What is the population size?

Steps: 2. Select a sample • • What is the population? What is the

Steps: 2. Select a sample • • What is the population? What is the population size? • What is the size of the sample you should use?

Steps: 2. Select a sample • • • What is the population? What is

Steps: 2. Select a sample • • • What is the population? What is the population size? What is the size of the sample you should use? • What is the sampling technique you should use?

Steps: 2. Select a sample • • What is the population? What is the

Steps: 2. Select a sample • • What is the population? What is the population size? What is the size of the sample you should use? What is the sampling technique you should use? • How can you ensure that it is a representative sample?

Steps: 2. • • • Select a sample What is the population? What is

Steps: 2. • • • Select a sample What is the population? What is the population size? What is the size of the sample you should use? What is the sampling technique you should use? How can you ensure that it is a representative sample? 3. Design your questionnaire • Write your survey questions ensuring that they are unbiased.

Steps: 3. Design your questionnaire • Write your survey questions ensuring that they are

Steps: 3. Design your questionnaire • Write your survey questions ensuring that they are unbiased. • Will you conduct your survey by interviewing or by having the individuals complete a survey? Which is best to ensure valid answers? Do you want to include questions related to background information such as age, gender, or grade? •

Steps: 3. Design your questionnaire • Write your survey questions ensuring that they are

Steps: 3. Design your questionnaire • Write your survey questions ensuring that they are unbiased. • Will you conduct your survey by interviewing or by having the individuals complete a survey? Which is best to ensure valid answers? Do you want to include questions related to background information such as age, gender, or grade? • 4. Collect your data • Collect responses using the sampling techniques you outlined.

Steps: 4. • Collect your data Collect responses using the sampling techniques you outlined.

Steps: 4. • Collect your data Collect responses using the sampling techniques you outlined. 5. Organize the Data • Organize the data using a table • This can be easily done with computer spreadsheet software

Steps: 5. Organize the Data • • Organize the data using a table This

Steps: 5. Organize the Data • • Organize the data using a table This can be easily done with computer spreadsheet software 6. Drawing the Line of Best Fit • Create a scatter plot • Draw the line of best fit • Is there a correlation?

Steps: 7. Analyse the scatter plot and draw conclusions • Write a conclusion that

Steps: 7. Analyse the scatter plot and draw conclusions • Write a conclusion that summarizes your results and answers your research question. 8. Extending the investigation • If you collected extra data, you can extend your investigation. • Cause-and-effect relationship? You may wish to explore further research.