Abstract
The current study is an attempt to discover the vocabulary size of students majoring in International Natural Science Education and the developmental pattern of their vocabulary size. The proposed research questions are: (1) What are the vocabulary sizes of students of international natural science education? and (2) Is their vocabulary size different across levels (freshmen, sophomore and junior)? To achieve the research aim, a cross-sectional research design was used. The total number of 79 students from three semesters studying in International Natural Science Education participated in the study. The instrument used was a Vocabulary Size Test developed by Nation and Beglar (2007). A descriptive statistic and an inferential statistics One-Way ANOVA continued by a pos-hoc test (Scheffe) were run in order to answer the proposed research questions. The results of computation revealed that the vocabulary size was 5,271-word families for the freshmen level, 6,142-word families for the sophomore level and 6,524-word families for the junior level. Based on the result of inferential statistics One-Way ANOVA, the student’s vocabulary size across levels are different. The F-ratio indicates that the difference between these groups was 7,369 in the level of significance 0,001. Furthermore, based on the Scheffe test, the significant difference lies between semester 2 and semester 4. Meanwhile, the difference of the vocabulary size between semester 4 and semester 6 was found to be less significant. In general, it can be concluded that there is a difference on the development of student’s vocabulary size reflected by the result of statistical analysis. The developmental pattern of students’ vocabulary size seems to be positive since the higher the level, the larger the students’ vocabulary size.
Highlights
The research questions proposed in this study are two-fold: (1) What is the vocabulary sizes of students of international natural science education in each level?, and (2) Is their vocabulary size different across levels? Concerning the second research question, the hypothesis formulated in this study is: “the students vocabulary size is different across levels.”
The purpose is focused on illustrating the growth of the learners’ vocabulary size. It is to look at the development of the international natural science education students in terms of their English vocabulary size
The participants were from 3 levels of students of International Natural Science Education
Summary
The mean score of the freshmen level is 52.71 with the standars deviation of 9.787. The mean score of the sophomore level is 61.42 with the standard deviation of 10.856. The mean score of the junior level is 65.24 with the standard deviation of 14.389. A score of 35 means that the learner’s vocabulary size is 3,500 word families. To find out the average of students’ vocabulary size, the mean score above needs to be multiplied by 100. The average of students’ vocabulary size in the freshmen level is 5,271 word families, the sophomore level is 6,142 word families and in the junior level is 6,524 word families.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
