Abstract :
English teaching is regarded to improve students’ ability in using English as a
means of communication, in all four English skills. However, most students do
not have equal achievement in all English skills. Some students perform better in
one skill, while the rest do better in other skills.
This research was done in order to see whether there is a significant difference in
writing achievement between students who are introvert and extrovert at the
second grade of SMAN 7 Bandar Lampung.
The participants of the research were the students of the second grade of SMAN 7
Bandar Lampung in the academic year 2011/2012. Two classes were taken as the
sample. Each class consisted of forty students. The research design was ex post
facto and the data were taken from questionnaire and writing test, and then they
were analyzed by using Independent T-Test to test the hypothesis.
The result of the data analysis shows that the students’ achievement in writing
differs between extrovert and introvert students. The difference in mean score of
writing was 4.3 in which the mean of extrovert students, 70.3, is higher than the
introvert students, 66.0.
The researcher used Independent T-Test at the significance level (0.05) to prove
whether the hypothesis was accepted or not. The computation showed that t-ratio
(2.183) is higher than the t–table (1.671); it means t-ratio>t-table. It can be
concluded that the introvert students’ achievement in writing is significantly
higher than the introvert ones. In other words, the alternative hypothesis is
accepted.