This research was aimed at investigating the effectiveness of crossword
puzzle for teaching writing descriptive text at the seventh grade students of SMP
Negeri 3 Banyumas in academic year 2017/2018. This research used quasi
experimental research. The participants of this research were the sevent grade
students in SMP Negeri 3 Banyumas. The two classes were chosen as the
experimental class (VII I) consisting of thirty students, and the control class (VII
H) consisting of thirty students. The technique of data collection used tests
namely pre-test and post-test. The result of assessment showed that the mean
score of pre-test in the experimental class was 51 and the mean score of post-test
was 70.1. Meanwhile, the mean score of the control class was 50.58 and the mean
score of post-test was 60.53. The improvement from pre-test to post-test was 19.1
in the experimental class. The progress in the control class was 9.95. The data was
calculated by statistical formula. The t-test result was 3.326 while the t-table with
the significant level 0.05 in d.f 58 was 1.6751. Based on the data analysis,
3.326>1.6751, t-test was higher than t-table, so that the hypothesis was accepted.
It can be proved that crossword puzzle gave positive effect for teaching writing
descriptive text.