Abstract :
This research aims to find out whether the mnemonic strategy has
significantly affect on students? vocabulary mastery or not at eight grade of MTs
Nurul Hakim. This research use quantitative research method (quasi-experimental
research). The population of this research was the eight grade of MTs Nurul
Hakim. There were two classes in the eight grade and the researcher took both
classes for sample. There were 26 students for experimental class and there were
22 students for control class. Instrument for collecting the data in this research
was test in the multiple choice form. Before conducting the treatment, the
researcher gave pre-test and giving post-test in the last meeting. In treatment,
students in experimental class were taught by using mnemonic strategy and
students in control class were taught without mnemonic strategy (conventional
strategy). The experimental class got improvement as much as 24,81 points (pretest=41,15 while post-test=65,96). Mnemonic strategy has a significant effect on
the students? vocabulary mastery. The result shows that the tvalue is 3,147 while the
ttable was 2.01 (tobserved> ttable, 3,248> 2.01). Therefore, Ha is accepted and H0 is
rejected. So, it can be concluded that there is a significant effect of mnemonic
strategy on the students? vocabulary mastery at eight grade of MTs Nurul Hakim.