This study investigates possible changes in students' English language ability by means of a questionnaire administered to 18 experienced university teachers. The questionnaire measures changes in six domains: grammar, reading, listening, speaking, writing, and attitudes. The results of the questionnaire indicate that over the last decade a majority of teachers perceived that their students' grammar, reading, and writing abilities have declined or remained stable while their listening and speaking abilities have improved. Teachers also reported that current students are more willing to listen to and speak in English than students were a decade ago. Teachers' perceptions of changes in grammar, reading, and listening are supported by hard data. In other words, most teachers accurately predicted changes in students' grammar, reading, and listening abilities. These accurate predictions may enhance the credibility of teachers' perceived changes in students' speaking and writing abilities, and attitudes. Instructional implications are discussed. (Contains 7 tables.)