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@thesis{thesis, author={ }, title ={Teaching Adjective Clause by Using Group Investigation (GI) to the Eleventh Grade of Exact Department Students of SMAN 1 Mamuju}, year={2017}, url={http://repositori.uin-alauddin.ac.id/7427/}, abstract={After teaching by using Group Investigation (GI), the researcher found that the use of Group Investigation was significantly effective to improve students’ adjective clause ability. The result was supported by the significant improvement of mean score in pre-test and post-test. In experimental class, the mean score of pre-test was 52.03 (poor) and the mean score of post-test was 87.50 (very good). While in control class, the mean score of pre-test was 51.25 (poor) and the mean score of post-test was 72.18 (good). Although, both of the classes are improved, the significant improvement happened in experimental class from poor to very good score while in control class the improvement was only from poor to good score. In addition, the t-test value (7.77) was higher than t-table value (2.000). The result indicated that the use of Group Investigation (GI) to the eleventh grade of exact department students of SMAN 1 Mamuju was effective to improve students’ adjective clause ability.} }