If you write more responses than required, they are not marked.

Is this statement true? I was reading about tips from the graders today on the CFA website.

“Providing more items or responses than requested. If a question asks for three factors, only the first three that you list will be graded.”

When writing my responses, I usually put more than the required in the hopes of getting more marks.

Ie. if they ask list 6, and I get 5 out of the 6 correct in the first 6, but my 8th reason is correct, would I still only get 5?

This changes the way I take the morning session completely.

Correct. You will also only get marked for the first point if you try and merge two points into one.