Texas Education Agency
Texas Gateway: Experimental Design
Given investigation scenarios and lab procedures, students will identify independent variables, dependent variables, constants, and control groups.
Shmoop University
Shmoop: Basic Statistics & Probability: Designing a Study
Presents the steps to follow in designing a study in statistics and explains what makes a good statistical question.
Varsity Tutors
Varsity Tutors: Hotmath: Statistical Questions
Explains what a statistical question is and when and how central tendency and the spread of the data are relevant.