A statistical question is one that can be answered by collecting data and where there will be variability in that data.

Introduction to experiment design. Explanatory and response variables. Control and treatment groups.

Matched pairs experiment design.

Sal determines if a few different methods of a magician choosing a volunteer are fair.

Identifying a sample and population.

Examples of bias in surveys.

Example of undercoverage introducing bias.

Worked example identifying sample study.

In this lesson, students will learn how to assess the validity of a within group design. It is 5 of 6 in the series titled "Evaluating Within Group Designs."

This lesson will explain the three principles of experimental design. It is 3 of 4 in the series titled "Experimental Design."

In this lesson, students will learn about advantages and disadvantages to within group experimental designs.