In this video I explain the concept of internal validity and how it acts as a checklist for considering whether an independent variable has been effectively manipulated, a dependent variable has been measured without bias, and a clear pattern can … Read More
Populations and Samples
In this video I explain populations and samples, including random sampling, opportunity samples, stratified sampling, and issues related to representativeness. Don’t forget to subscribe to the channel to see future videos! Have questions or topics you’d like to see covered … Read More