Making errors is a natural process of language learning. As in all kind of learning, language learning also involves making errors. Research has shown that even in the first language acquisition process, children make countless errors. Similarly, adult learners of English will inevitably make errors until they have mastered the rules of target…

As states, districts, and schools transition toward more rigorous educator evaluation systems, they are placing additional weight on judgments about educator practice. Since teacher and principal observation ratings inherently rely on evaluators' professional judgment, there is always a question of how much the ratings depend on the particular…