fractional factorial

  1. T

    Individual Covariate in Fractional Factorial Design

    I want to make a marketing experiment (sending an e-mail) with fractional factorial design. I will send this e-mail to a mailing list consist of 660 members. I have 6 factors and use the 1/2 fraction. I plan to use response variable open rate (ratio between email open/sent) and CTR (ratio...
  2. R

    Fractional Factorial Design Question

    Does anyone have experience with using fractional factorial designs for psychological research? I'm new to DoE, and I have no guidance except the internet... not too helpful. Anyhow, I have a practical question about data collection and entry (e.g. minitab) The question is: if I have...