https://community.jmp.com/t5/Discussions/How-is-power-calculated-in-optimal-designs/m-p/468891#M71275 <P>How is power calculated in optimal designs? I designed a D-optimal split-split plot experiment, and as in classical split-split-plot designs, the power associated with the main plots and subplots are lower than the sub-sub plots, but I struggle to understand if power (and effect size) calculations in optimal designs are computed the same way as classical designs. In other words, how does applying optimality criteria affect the treatment structure/variance partitioning?&nbsp;</P> Thu, 08 Jun 2023 21:08:25 GMT elb89 2023-06-08T21:08:25Z https://community.jmp.com/t5/Discussions/How-is-power-calculated-in-optimal-designs/m-p/468891#M71275 <P>How is power calculated in optimal designs? I designed a D-optimal split-split plot experiment, and as in classical split-split-plot designs, the power associated with the main plots and subplots are lower than the sub-sub plots, but I struggle to understand if power (and effect size) calculations in optimal designs are computed the same way as classical designs. In other words, how does applying optimality criteria affect the treatment structure/variance partitioning?&nbsp;</P> Thu, 08 Jun 2023 21:08:25 GMT https://community.jmp.com/t5/Discussions/How-is-power-calculated-in-optimal-designs/m-p/468891#M71275 elb89 2023-06-08T21:08:25Z https://community.jmp.com/t5/Discussions/How-is-power-calculated-in-optimal-designs/m-p/468994#M71280 <P>The power calculation is the same. The power depends on the design, not the design method.</P> Fri, 11 Mar 2022 17:55:31 GMT https://community.jmp.com/t5/Discussions/How-is-power-calculated-in-optimal-designs/m-p/468994#M71280 Mark_Bailey 2022-03-11T17:55:31Z