It can also be summarized that the students’ listening comprehension appeared to
have improved after they had experienced authentic language and authentic materials in
the ESL classroom. Nevertheless, the students’ progress in listening comprehension was
more evident in their ability to understand the language in a structured environment of the
classroom than that occurred in a natural setting outside class. Having exposed to
English language spoken by various groups of native speakers, the students experienced
difficulty in understanding according to certain features of authentic language, including
pace, accent, dialects, and formality.