The student's research design is clearly described and explained, as they correctly identify the chosen design as repeated measures and explain how it was applied in their study. The sampling technique, opportunity sampling, is also correctly described and explained, with a suggestion for improvement to explain the benefit of the "easiness" of obtaining the sample. Relevant characteristics of the research participants are well-described, but the student could have included the gender distribution for improvement. The justification for the choice of participants based on English proficiency is sufficiently provided. Additionally, the student clearly states all controlled variables, including participant, situational, and researcher variables, but should have provided specific reasons for control alongside each identified controlled variable for improvement. Overall, the student demonstrates a strong understanding of the research design and sampling technique, with some areas for further development identified in the comments.
