A 2^k fractional factorial design is a type of experimental design that allows researchers to study k factors, each at two levels, while only using a fraction of the full set of runs required by a full factorial design. This approach is useful for efficiently identifying significant factors in situations where resources are limited, allowing for the exploration of interactions among variables without needing to test every possible combination. By using a fraction, researchers can gain insights into the main effects and interactions with fewer experimental runs.
congrats on reading the definition of 2^k fractional factorial design. now let's actually learn it.