The document summarizes a study that analyzed the quality of multiple choice questions (MCQs) used in online tests in Massive Open Online Courses (MOOCs). The study found that 14.78% of the 115 MCQs analyzed across 12 MOOCs and platforms contained defined item writing flaws. Common issues included having more than one correct answer, the longest answer being the correct one, and flaws in question structure. The study concludes that the validity and reliability of online testing in MOOCs could be improved by avoiding these flawed question structures and following best practices for writing high-quality MCQs.