National results for writing, one of the subjects assessed by National Assessment during 1969-70, were reported in November 1970. In the present report, results are presented by age (9, 13, 17 and young adults between 26 and 35) and by three classifications: (1) sex, (2) region: southeast, central, west, and (3) size of community: big cities, urban fringes, medium-size cities and smaller places. The data are examined for evidence of patterns of performance--for example, in general, how do males and females compare in percentage of successful performance? How does each region compare with the nation as a whole? How does each size of a community compare with the nation as a whole? The general, or typical, behavior is described, and then exercises on which a group performed much above or much below its own typical level are described and discussed. The general findings are: (1) Females perform better than males at all four ages, but their advantage is greater for 17s and adults than for 9s and 13s; (2) The northeast and central regions typically are above the nation as a whole; (3) The urban fringe typically performs above the nation as a whole, and the advantage is greater at ages 17 and adult than at ages 9 and 13. Three appendices are attached. For related document, see TE 002 474. (CK) Primary type of information provided by report: Results (Subgroup).