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Unable to add random intercept (Intercept | Dyad ID) in Mixed Model — arrow and drag not working (Mac)

Posted: Wed Mar 18, 2026 12:49 am
by Deepti
Hi everyone,

I’m trying to compute ICC using the Mixed Model in jamovi, but I’m running into an issue when specifying random effects.

What I am trying to do:
  • Dependent Variable: MeanSat

    Cluster variable: Dyad ID

    Random effect: Intercept (Dyad ID)
Issue:
  • I am able to create the component “Intercept | Dyad ID” in the Components box, but:

    Clicking the arrow (→) does not move it to the Random Coefficients box

    Drag-and-drop also does not work

    The right panel shows: “Select at least one term in Random Effects”
What I have already tried:
  • Ensured the dependent variable is added

    Clicking (not dragging) before using the arrow

    Resizing the window

    Restarting jamovi

    Recreating the analysis from scratch
System details:

OS: macOS

jamovi version: 2.6.45

This seems like a UI issue rather than a setup problem. Has anyone encountered this, or is there a workaround to correctly specify the random intercept?

Thanks in advance for your help!

Re: Unable to add random intercept (Intercept | Dyad ID) in Mixed Model — arrow and drag not working (Mac)

Posted: Thu Mar 19, 2026 9:19 pm
by mcfanda@gmail.com
Hi
please be sure you're working with GAMLj3. Second, trying naming your cluster variable "Dyad_ID" and see whether the issue is solved.

Re: Unable to add random intercept (Intercept | Dyad ID) in Mixed Model — arrow and drag not working (Mac)

Posted: Tue Mar 24, 2026 9:01 am
by mcfanda@gmail.com
In any case, if you update to jamovi 2.7 it should be ok

Re: Unable to add random intercept (Intercept | Dyad ID) in Mixed Model — arrow and drag not working (Mac)

Posted: Tue Mar 24, 2026 9:22 am
by mcfanda@gmail.com
Due to structural changes, jamovi version 2.6.* supports GAMLj3 up to version 3.6.1. Newer versions of GAMLj3 are available for jamovi 2.7.*. So please update jamovi to 2.7. If that is not an option, please remove GAMLj3 3..6.1 from your jamovi 2.6 and install version 3.6.1.