Lesson 2: Statistics: Benefits, Risks, and Measurements

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  • Complete the 'Poll Monday' and 'Thinking Tuesday' Activities for Lesson 2.
  • Read Chapters 1 and 3 in the text.
  • Work through the Lesson 2 online notes that follow.
  • Complete the Practice Questions and Lesson 2 Assignment  (posted in Canvas in the Lesson 2 module).

Learning Objectives

Chapters 1 and 3

After successfully completing this lesson, you should be able to:

  • Identify the three conditions needed to conduct a proper study.
  • Apply the seven pitfalls that can be encountered when asking questions in a survey.
  • Distinguish between measurement variables and categorical variables.
  • Distinguish between continuous variables and discrete variables for those that are measurement variables.
  • Distinguish between validity, reliability, and bias.

Terms to Know

click on the terms to learn more

From Chapter 1

  • statistics
  • population
  • sample
  • observational study
  • experiment
  • nonresponse bias

From Chapter 3

  • data (variable)
  • categorical variables
  • measurement variables
  • measurement (discrete) variables
  • measurement (continuous) variables
  • validity
  • reliability
  • bias