Abstract:
This research deals with the effect of applying extensive reading strategy
on the students’ vocabulary mastery in reading. This research was conducted at
SMK PAB 2 Helvetia. The research was done from December 2016 to April
2017. The population of this research was taken from the X grade students’
academic year 2015/2016 of SMK PAB 2 Helvetia, Sumatera Utara, which
consists of four parallel class. There were X AP-1, X AP-2, and X AP-3. Class X
AP-1 consists of 35 students, class X AP-2 consists of 30 students, X AP-3
consists of 35 students where X AP-1 and X AP-3 class were taken as the sample
of this research. The experimental quantitative research was applied in this
research. The experimental quantitative was research with two different groups,
experimental that consist of 35 students and control group consist of 35 students.
The facts showed that t-critical (tc) value was higher than the t-table on the level
2.024. Therefore, the null hypothesis was rejected and alternative hypothesis was
accepted. So, the researcher concluded the alternative was accepted that there was
any significant effect of applying Extensive Reading Strategy on the students’
vocabulary mastery in reading. The students difficulties of applying Extensive
Reading Strategy on the students’ ability based on the minimal passing grade the
students that 70 points or 36% was low did not get pass the minimal passing grade
and the students got above passed of the minimal passing grade 69%, it means
that, the applying Extensive Reading Strategy on the students’ ability was
succeeded
