Final answer:
The PEMAT is the best tool for evaluating print and audio-visual patient education material for understandability and actionability, as it provides a systematic method to assess both the clarity and the usability of the materials for patients.
Step-by-step explanation:
When evaluating print and audio-visual patient education material for understandability and "actionability," the BEST tool is A. PEMAT (Patient Education Materials Assessment Tool). The PEMAT is specifically designed to assess the understandability and actionability of patient education materials. It provides a systematic method to evaluate both printed and audiovisual materials and offers scores that indicate how easy the materials are to understand and act upon by patients.
The REALM (Rapid Estimate on Adult Literacy in Medicine) is a screening tool used to estimate a patient's literacy level but does not evaluate the materials themselves. The SMOG is a readability formula that estimates the years of education needed to understand a piece of writing fully, and 'Ask Me 3' is a patient education program focusing on three questions patients should ask their healthcare providers, rather than an assessment tool for educational materials.