@sallyarmy48 My bad, then, sorry! I saw a rubric for the writing portion of the new ACT on their site that had four domains, each worth a maximum of 6 points. Two readers evaluate their essay and if they don’t agree fairly closely, it is read by a third. There must be some other calculation they do to convert the result into a 1-36 scale. Sorry to have steered you wrong. Did they translate the 16 into a percentile?
here’s the rubric (remove the space, not hotlinked), FWIW.