This workshop will address the question of how to effectively write and assess organic chemistry mechanism questions. There are a wide variety of approaches and no standardized way to assign credit for incorrect/partially correct answers. Participants will score example questions and discuss why/how they assigned the grade. As a group, the participants will develop a rubric that can be applied to all mechanism questions. Participants will have the opportunity to use this rubric in scoring questions in their courses and report back on its use. This is the second iteration of this workshop and previous participants as well as new participants are invited to join. There is also an advanced version of this workshop open to initial workshop attendees (BCCE 2018) and those attending this one as well.