This document summarizes a paper presented at a conference on assessing higher order thinking and communication skills in college graduates. The paper argues that writing encompasses a wide range of skills from basic mechanics to complex ideas and problem solving. It discusses three methods of writing assessment: multiple choice tests, essay exams, and portfolio assessments. The paper asserts that portfolio assessment shows the most promise for validly measuring higher-order skills while also positively impacting instruction. It recommends that any national writing assessment focus principally on portfolio evaluation.