This study was a test of students’ achievement in vocabulary and reading to find out it influeces both of them. The sample consisted of 40 students from four different classes in eighth grade. Students were examined with two tests; Vocabulary tests and Reading tests. There were twenty questions for each test, so numbers of all questions are forty questions.
The topic was discussed through asosiatif research in SMP N 2 Gringsing Batang. The data is gathered through observation, documentation, and test. The questions of the research are (1) How is the influence of students’ achievement in vocabulary to reading ability at SMP N 2 Gringsing Batang? (2) How is the contribution of students’ achievement in vocabulary to their reading ability at SMP N 2 Gringsing Batang?
The study showed that: The result of this study showed that there was an influence of students’ achievement in vocabulary to their reading ability. It can be showed with the result, it could be known that rxy = 0.638 because rxy = 0.638 > rt (5%) = 0.312, and Freg is 1,105 that means significant. So, there was significant correlation and influence between students’ achievement in vocabulary and reading ability.
The average value of students’ achievement in vocabulary was 57.875 and in reading test were 64.625. So, the English learning achievement of the eighth grade students of SMP N 2 Gringsing Batang in the academic year of 2011/2012 was considered good category. Based on the data described, the students’ achievement influenced reading ability as much 40.7%, and the other factors that influenced reading ability is 59.3%. in this moderate level, it can be concluded that to get the good reading ability, the students must have great achievement in vocabulary. It means, if the students’ achievement in vocabulary is good, so the reading ability is also good.
The result of this study is expected to be information for many teachers especially English teachers in teaching vocabulary so that they can produce students who master English well. There is a need to do more research about teaching English in reading and vocabulary. So that, the more optional result will be gained.