why does d-efficiency value fluctuate when comparing designs? when can d efficiency value vary which design value does d efficiency how to determine d efficiency in factorial design does d efficiency vary in factorial design? which value of d efficiency does not vary when changing the number of runs in an experiment? d value of an experiment when designing a factorial design does not vary? how many runs does d efficiency vary d optimal? which design factor is affected by d efficiency does d-efficiency vary when evaluating an experiment which design has d efficiency do d efficiency values vary between experiments how to measure d efficiency in factorial design does d efficiency change when a study is done? does d efficiency vary when evaluating a design when d efficiency value is changed in factorial design the experiment number why does d efficiency vary in a design what is the d efficiency value in d-optimal design why should the d efficiency of a design vary with the number of runs does d efficient design vary