Do MCAS scores matter a lot?

<p>I just found out that the private schools get to see your 6th and 7th grade MCAS scores. In my case, I did terrible the 6th grade one, but all my grades were like A’s and a few B’s, my 7th grade ones were fine, along with decent grades And now all my grades are great. I was just wondering if the one MCAS scores are gonna really hurt my chances.</p>