Random blocking added to Covariates

DrRubber — Sat, 10 Jun 2023 20:47:23 GMT

I am trying to afix a random effect blocking variable to an existing design which I treat as covariates. The program seems to be bringing in the blocking variable as a fixed effect. How do I make the blocking variable a random effect?

Re: Random blocking added to Covariates

Mark_Bailey — Tue, 26 Oct 2021 18:14:05 GMT

You cannot designate that this blocking factor has a random effect in the design. But you can when you analyze the data. Select Analyze > Fit Model. (It should be populated if there is a Model table script, otherwise, assign roles and add effects as necessary.) Select the lone term for the block effect, click the red triangle next to Attributes, and select Random Effect.

To avoid having to perform this step each time you open Fit Model dialog, click the red triangle at the top and select Save to Data Table.

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Random blocking added to Covariates

Re: Random blocking added to Covariates