in order to analyze my study´s predictive validity and retest reliability, I need to add holdout cards into my ACBC. The manual Lighthouse 9.2 only specifies the approach for CBC and the ACBC Design settings do not offer the section "Fixed Tasks".
Should I add a CBC section to my ACBC survey and choose fixed tasks only (Random Tasks: 0 | Fixed Tasks: 6 )?
If I would like to include the fixed choice tasks (holdouts) into the utility estimations of the ACBC after having tested the validity and reliability, are the CBC choices compatible with the ACBC estimation?
Thanks very much in advance for your response.