Effect of portfolio assessment on the writing achievement of twelfth-graders at St. Croix Central High School   Creator:   Mark, Henry Publisher:   University of the Virgin Islands ( St. Croix ) Publication Date:   2008 Type:   Book Format:   iii, 39 leaves ; 29 cm. Source Institution:   University of the Virgin Islands Holding Location:   University of the Virgin Islands Subject Keyword:   Portfolios in education -- United States Virgin Islands -- Saint Croix. Composition (Language arts) -- Evaluation. Written communication -- Study and teaching -- Activity programs -- United States Virgin Islands. Language:   English Effect of portfolio assessment on the writing achievement of twelfth-graders at St. Croix Central High School