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Hi Prof Michiel,

Indeed I was estimating a single parameter for each attribute. But I was pointed out by a fellow colleague to consider specifying the continuous variables as categorical which will then allow me to obtain a design where a model can be tested for linearity. Hence I wanted to design ...

Thanks Paul for the comment. Edited my post to rework the syntax.

Thanks Prof Michiel for the guidance and clarification. Much appreciated.

Good day Prof,

Thank you so much for answering my questions. Much appreciated. This brings me to my next query, please bear with me.

Q1. One of my attribute (FREQ) level -i.e 4 will only appear in the SQ alternative and not TxA or TxB (where levels are 6,8,12). In my recently completed pilot study ...

Good day Ngene users,

I completed my pilot design using the syntax given by Prof Michiel above for a dual response SC experiment. Thank you so much for your input. I am now preparing to use the data analyzed from the pilot to start designing the experimental design for the main study. Given the ...

First off, I would like to say it has been a pleasure reading through the forums. It really does help me to understand experimental design better. Kudos to Michiel, John and Andrew. Keep up the good work!!

As per my title, I am building a pilot study that incorporates a dual response design (i.e a ...