In the field of research, a variable is an object, idea, or any other characteristic that can take any value that you are attempting to measure. Age, blood pressure, height, exam score, sea level, ...

Learn about planning experiments and variables when working scientifically with these interactive learning resources for KS2 Science students aged 7-11 from BBC Bitesize.

Note that the same variable cannot be assigned multiple values within a single source. Lets look on possible options from the less precedent values to the most one. For the example we will use simple ...

Discover the best variable selection methods for experimental data analysis. Compare frequentist, penalised shrinkage, and LARS approaches. Find out why LARS is ideal for blocked design experiments.