Recent content by titonio

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    Individual Covariate in Fractional Factorial Design

    Thank you again for your answer! One more question, is there any implication if I don't have the perfect orthogonal set up? Especially when I run logit model
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    Individual Covariate in Fractional Factorial Design

    Thank you for your reply! This really helps. I want to ask again about the extra fraction, so if I want to add an extra fraction it should be 2^x? If there's some responses that I should exclude because it didn't pass a manipulation check, is it okay to run a logit model? (For example there are...
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    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...