Question

SOMEONE HELP! PLEASE A researcher wishes to design a fully blocked experiment with groups of subjects representing every possible combination of 1 explanatory variable (control versus treatment) and 3 other variables (male versus female, old versus young, healthy versus ill) for a total of 4 variables. How many blocks will there be in her experiment? A. 32 B. 16 C. 4 D. 8

Answer 1

The number of fully blocked experiment that the researcher will be able to form given that the groups of subjects is composed of 1 explanatory variable and 3 other variables, for a total of four variable is letter B. 16. This is because there are 2 options in each of the variable similar to saying 2^4 which is equal to 16.