Abstract:
The experimental quantitative research design was applied in this research. The
objective of the study was to find out the effect of extensive reading strategy on
the students’ critical thinking in reading. This research was conducted at SMA Al-
Hikmah Medan in eleventh grade students academic year 2019/2020 which
consisted of 3 clasess as the population. The sample was consisted of 80 students
which were taken by using purposive sampling technique and divided into two
different groups namely experimental class which consisted of 40 students and
control class which consisted of 40 students. Essay test was used as instrument
which consisted of five questions and administrated in pre-test and post-test.
Based on the data analysis, the result showed that there was any significant effect
of extensive reading strategy on the students’ critical thinking in reading with tcritical
(tc) value was higher than ttable on the level 6.1827 > 2.024. Therefore, the
alternative hypothesis (Ha) was accepted and the null hypothesis (H0) was
rejected. It also found that the students who were taught by applying extensive
reading strategy (experimental class) got higher scores than the students who were
taught by applying lecturing method (control class). So, it meant that applying of
extensive reading strategy on the students’ critical thinking in reading was
succeeded.
