Why are these drag item objects moving on their own?

Hi Grace,

My first suggestion would be to try and avoid drag and drop questions in general. Typically they are added in an effort to add "interactivity." They can have a negative effect on usability (Issues like you discuss above.), accessibility (Can someone complete the interaction with keyboard only? How?), and learner experience (Limited in meaningful feedback. They're all correct or incorrect with no reasoning why.).

Think on this quote from Ethan Edwards (Allen Interactions). “Whatever you build, it’s just a multiple-choice question.”

If each of your draggable items are created as individual questions, each with the same 3 choices, you have opportunity to provide why their selection was correct, or more importantly, incorrect.

If you must have all questions and choices on one screen simultaneously, you might consider a multi-choice, pick many interaction.

See attached.

FYI - I left a group of text boxes referencing the variables used, so you can better see what's going on.

Hope it helps.