Ranking: a one dimensional quantitative judgment--as with grading. A one dimensional quantitative score can never be an accurate reflection of the quality of a multidimensional product (like writing and many other human products).
Evaluation: a multidimensional judgment--using words or providing a multidimensional grid. Judging allows for more trustworthy assessment of writing and many other products.
Liking. This section explores the benefits that come when teachers actually learn to *like* student work--and indeed to like students--and how one can learn to like work even if one judges it to be not very good.
Available at: http://works.bepress.com/peter_elbow/42/