This research aimed to screen 'essay writing' difficulties that non-native university students at postgraduate levels usually experience regarding scholarly publication in mainstream, English journals. Two sets of variables including written literacy competencies in Persian and English languages were mapped over language uses (General vs. Academic). Initial screenings from one hundred Iranian students at PhD and MA levels with publication experiences in both Persian and English languages gave rise to some fifty-five participants randomly selected from different university disciplines (Humanities, Engineering, Medicine and Basic Sciences) and diverse university settings (Public and Private) across the country and classified via stratified sampling. A validated questionnaire from a large-scale project called ENEIDA (Moreno, 2011) was used for collecting the required data. Two measures were used to assess written literacy competencies across language uses: 1) participants' assumed, self-reported written literacy competencies in using English and Persian languages for General and Academic purposes were denoted as 'perceived' measures and 2) further supported by actual measures: mostly received comments from reviewers in the mainstream, English journals by the target group above. Findings were discussed in the light of recent lines of enquiries in Academic Literacy (AL) trends.
