This study investigated the ways in which different writing tasks infl
uence the quality and quantity of FL composition, as well as the writi
ng strategies used by American college students when composing in Japa
nese as a foreign language. The purposes of the study were three-fold:
(a) to compare qualitative and quantitative differences between descr
iptive and narrative writing tasks; (b) to describe linguistic and rhe
torical requirements in each task; and (c) to identify the discourse s
trategies utilized in the tasks. Three types of text analyses demonstr
ated that the two tasks posed varying linguistic and cognitive require
ments. This finding suggests that different linguistic competencies ar
e required to perform varying writing tasks. The data also indicated t
hat narrative discourse involves more demanding linguistic processing,
at varying levels, than descriptive discourse. In addition, the analy
ses demonstrated that the ability to expand and elaborate preceding su
btopics in discourse accounts at least in part for individual differen
ces in FL composition aptitude. This ability, moreover, is related to
knowledge of content-word meanings. These findings are consistent with
those from reading comprehension research, both in L1 and L2, and thu
s support the view that reading and writing involve essentially simila
r processes of constructing meaning.1