Yes, you may use different scales within the same occupational questionnaire. We recommend you group the questions using the same scales (for example, all the Yes/No questions are in the same area). You will also need to take the differing scales into account when deriving the scores for each question (e.g., How many points you will give a Yes/No question as opposed to a response on a 1 to 5 scale?) and document your rationale.
For more information on occupational questionnaire rating scales, please refer to the Occupational Questionnaires PowerPoint at http://www.opm.gov/policy-data-oversight/assessment-and-selection/occupational-questionnaires/developing-occupational-questionaires.pdf.
If you have further questions regarding occupational questionnaires, please contact us at Assessment_Information@opm.gov.
There was an unexpected error when performing your action.
Your error has been logged and the appropriate people notified. You may close this message and try your command again, perhaps after refreshing the page. If you continue to experience issues, please notify the site administrator.