The Effect of Three-step Interview Technique on Students' Speaking Skill (A Quasi-experimental Study at the Eight Grade of SMPN 3 Tangerang Selatan in Academic Year 2017/2018)

The study was quasi-experimental design which was intended to get the empirical evidence of the effect of three-step interview technique on students? speaking skill. The population was the eight grade students of SMPN 3 Tangerang Selatan. The sample was 78 students chosen through purposive sampling technique and classified into two classes, experimental and controlled class. The instruments were speaking test and interview. The test was given at the beginning and at the end of the treatment by using three-step interview technique. The data of pre-test and post-test were analyzed by using t-test. The result of pre-test score from both classes showed that the mean score of controlled class was higher than experimental class. Meanwhile, the result of post-test score revealed that the score of experimental class was significantly higher than controlled class. The result showed that the sig 2 tailed was p (0.024). Meanwhile the alpha (&#945;) was 0.05, which was 0,024< 0.05, and it was also supported by the result of effect size that was 0.51 in moderate level (significance). It clearly proved that applying three-step interview technique was effective in improving students? speaking skill at eight grade students of SMPN 3 Tangerang Selatan in academic year 2017/2018