Recently, scholars have suggested that "second-language writers" are made up of two distinct groups: Generation 1.5 (long-term U.S.-resident language learners) and more traditional L2 students (e.g., international or recently arrived immigrants). To investigate that claim, this study compares the first-year composition writing of Generation 1.5 students to the writing of their classmates to determine whether textual markers distinguish demographically identified groups. Results indicate no significant textual differences between Generation 1.5 and L1 (English as a first language) students but do indicate significant differences between Generation 1.5 and L2 students, suggesting that Generation 1.5 writers (broadly defined) may not be second-language writers. (Contains 7 tables and 3 notes.)