Tri Utari. 2022. The Effectiveness of Using Blindfold Game to Improve the Students’ Vocabulary Mastery at SMP Negeri 3 Lamasi (supervised by Hafirah Patang and Fibri Indira Lisanty)

The main objective of the research is to examine the effectiveness of
blindfold game to improve the students’ vocabulary mastery at SMP Negeri 3
Lamasi. The researcher used random sampling technique to take the samples and
total number of the sample were 20 students. The instrument of the research was
vocabulary test. The result of the research reveals that there is a significant
different between the students’ vocabulary mastery before and after using
blindfold game. In the pre – test, there are 2 or 10% students get very poor, 7 or
35% students get poor, 8 or 55% students get fair and also 3 or 55% students get
average classification. While in the post test, there are 8 or 40% students get
average score, 11 or 55% students get good score, and only 1 or 15% students
who get very good classification. The means score of the posttest is greater that
pretest ((56.25 < 75. 90).). The standard deviation of pre – test is 15. 18 and
posttest is 9. 19. While P- Value = 0,000, (α)= 0,05. It means that the t – test is
smaller than (α).