Investigating the comparability of students' performance on TOEFL writing tasks and actual academic writing tasks is essential to provide backing for the extrapolation inference in the TOEFL validity argument (Chapelle, Enright, & Jamieson, 2008). This study compared 103 international non-native-English-speaking undergraduate students'…

In the present study, aspects of the measurement of writing are disentangled in order to investigate the validity of inferences made on the basis of writing performance and to describe implications for the assessment of writing. To include genre as a facet in the measurement, we obtained writing scores of 12 texts in four different genres for each…

Practitioners working closely with second language (L2) writers in the US recognize at least two types of L2 students: international (IL2) and Generation 1.5 (G1.5) students. Some argue that specific differences in each group's writing performance are evident (cf. Harklau, 2003; Reid, 2006); however, investigations into observable and measurable…