Recipe calls for oats-which kind do they mean?

Use rolled oats, not quick cooking. Quick cooking oats are just rolled oats cut into smaller pieces therefore they cook quicker. For a nuttier tasting cookie, you can lightly toast the oats before adding to the receipe. Toast on medium heat in a stove top pan, stirring often until they turn a slight golden brown. Works great for morning oatmeal too.

It's for an oatmeal raisin cookie.
So no quick cooking then correct? Use rolled oats?

You can usually use quick cooking if not specified - but NOT instant, which is different

Usually, if it's not specified it means rolled oats (not quick cooking). What is the recipe?