In a factorial experiment, each combination of different levels of the factor is called a treatment.
Each combination of the various degrees of the factor in a factorial experiment is referred to as a treatment. The term "factorial experiment" refers to an experiment whose design includes two or more factors, each having discrete possible values or "levels," and whose experimental units take on all possible combinations of these levels across all such factors.
Also known as a fully crossed design, a full factorial design has several factors. This kind of factorial experiment enables the researcher to investigate how each element affects the response variable and how those effects interact with one another.
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