http://www.google.com/url?sa=t&rct=j&q=DRA+observation+guide+story+retell&source=web&cd=1&ved=0CCEQFjAA&url=http%3A%2F%2Fedc424uri.wikispaces.com%2Ffile%2Fview%2FLevel%2B1-6%2BGeneric%2BFiction%2BRetell%2BForm.pdf&ei=tbJwT8uNDumI0QHZvs35Bg&usg=AFQjCNFcUG92e9VYQ0KWl0LvFY-udXlbuA
OP the above is an example of the DRA Observation Guide. If you scroll to the end you will see how reading comprehension is measured by the child answering questions. I don't see any sequencing measured there. It mostly asks a student, "Who were the characters?" and "Why do you think the author wrote this story?"