Answer:
This is a between-group design.
Step-by-step explanation:
Between-group or between-participant design refers to the design of experiments that involve two or more groups being tested simultaneously but with different factors. The simplest way to carry out a between-group design is by dividing participants into two groups, the experimental one and the control one. In the situation described in the question, we have several groups, all with different factors being tested at the same time.