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+++ title = "Chapter 1" date = "2017-04-29T18:36:24+02:00" Weight=1 +++

Chapter 1 - Introduction to Data

Learning Objectives

  • Identify the type of variables (e.g. numerical or categorical; discrete or continuous; ordered or not ordered).
  • Identify the relationship between multiple variables (i.e. independent vs. dependent).
  • Define variables that are not associated as independent.
  • Be able to describe and identify the difference between observational and experimental studies.
  • Distinguish between simple random, stratified, and cluster sampling, and recognize the benefits and drawbacks of choosing one sampling scheme over another.
  • Identify the four principles of experimental design and recognize their purposes: control any possible con- founders, randomize into treatment and control groups, replicate by using a sufficiently large sample or repeating the experiment, and block any variables that might influence the response.

Readings

Videos

OpenIntro provides a number of videos. You may find these helpful while reading the chapter.

Case Study: Using Stents to Prevent Strokes

<iframe width="560" height="315" src="https://www.youtube.com/embed/nEHFF1ADpWE?list=PLkIselvEzpM6pZ76FD3NoCvvgkj_p-dE8" frameborder="0" allowfullscreen></iframe>

Data Basics: Observations, Variable, and Data Matrices

<iframe width="560" height="315" src="https://www.youtube.com/embed/Mjif8PTgzUs?list=PLkIselvEzpM6pZ76FD3NoCvvgkj_p-dE8" frameborder="0" allowfullscreen></iframe>

Data Collection Principles

<iframe width="560" height="315" src="https://www.youtube.com/embed/2N_bkiyTiXU?list=PLkIselvEzpM6pZ76FD3NoCvvgkj_p-dE8" frameborder="0" allowfullscreen></iframe>

Observational Studies and Sampling Strategies

<iframe width="560" height="315" src="https://www.youtube.com/embed/n1xSeGPGQEg?list=PLkIselvEzpM6pZ76FD3NoCvvgkj_p-dE8" frameborder="0" allowfullscreen></iframe>

Designing Experiments

<iframe width="560" height="315" src="https://www.youtube.com/embed/g7JGe_ykB3I?list=PLkIselvEzpM6pZ76FD3NoCvvgkj_p-dE8" frameborder="0" allowfullscreen></iframe>

[Using Randomization to Analyze a Gender Discrimination Study](Using Randomization to Analyze a Gender Discrimination Study)

<iframe width="560" height="315" src="https://www.youtube.com/embed/2pHhjx9hyM4?list=PLkIselvEzpM6pZ76FD3NoCvvgkj_p-dE8" frameborder="0" allowfullscreen></iframe>
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