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Section Unit 2 Summary

In this unit, we’ve explored:
  • The data investigation framework developed by Hollylynne Lee and colleagues, which provides a structured approach to data analysis
  • How to formulate effective statistical questions that anticipate variability and can be answered with data
  • The components of a comprehensive investigation plan, including research questions, data requirements, analysis approaches, and potential challenges
  • Fundamental concepts of statistical thinking, particularly the importance of understanding and accounting for variability
  • Ethical considerations regarding representation in data and how they affect the conclusions we can draw
By the end of this unit, you should have a clear investigation plan for your project dataset, including well-formulated statistical questions and a strategy for analysis. This plan will guide your work in the upcoming units as we dive deeper into data moves and visualization techniques.

Checkpoint 50. Unit 2 Reflection.

Take some time to reflect on what you’ve learned in this unit:
  • How has the data investigation framework changed your approach to analyzing data?
  • What was most challenging about formulating effective statistical questions?
  • How does understanding variability influence the way you think about data?
  • What aspects of your investigation plan are you most confident about, and which might need refinement as you proceed?

Checkpoint 51. Unit 2 Review.

    Which of the following BEST describes the main purpose of the data investigation framework?
  • To provide a rigid, linear sequence of steps that must be followed in every data analysis
  • The framework is not meant to be rigid or strictly linear. Real investigations often involve cycling back through earlier phases as new insights emerge.
  • To replace critical thinking with standardized procedures for data analysis
  • The framework is designed to enhance critical thinking, not replace it. It provides a structure while still requiring judgment and creativity.
  • To provide a structured approach that ensures all important aspects of data investigation are considered
  • Correct! The framework serves as a guide to help ensure that important elements like question formulation, data quality assessment, appropriate analysis, and careful interpretation are all addressed.
  • To automate the process of analyzing data so that minimal human intervention is required
  • The framework does not automate analysis; it provides a conceptual structure for human investigators to follow while still requiring substantial judgment and expertise.