Using Exclusive logic, you can prohibit respondents from selecting certain answer options together in a Checkbox or Multichoice Progressive Matrix question. Exclusive all prohibits a respondent from selecting any other answer option alongside the one they've selected — similar to the N/A feature.

Learn more about Exclusive and Exclusive all in the Advanced aytm Logic course in the Lighthouse Academy!

Exclusive

In the answer option text field, enter exclusive logic referencing the answer option(s) that should not be selected simultaneously. In this example, respondents who select Q1A1 (Oil-free) cannot also select Q1A2 (Oil-based). Respondents who select Q1A2 (Oil-based) cannot also select A1, A3 (Water-based), or A4 (Gel-based). This prevents conflicting answers within the same question.

Exclusive All

Exclusive all bars respondents from selecting any other answer once a specific option is chosen. In this example, if a respondent selects A8, no other option can be selected. You can combine this with a follow-up question using [show if Q1A8].

Exclusive in Progressive Matrix Questions

When programming Exclusive logic in Multichoice Progressive Matrix questions, the logic must be entered in the Matrix Answer Option field. It will only trigger if the answer field it's placed in is selected by the respondent. In this example, if a respondent selects SQ1A1, they cannot also select SQ1A3.