The Influence of the Group Investigation ( GI ) Learning Model on Critical Thinking Skills and Student Learning Outcomes in SMAN 7 Bengkulu Utara Deni Murtiya Ningsih (a*), and Tomi Hidayat (b)
1) Student of mMaster of Biology Education Uiversitas Muhammadiyah Bengkulu. Jl. Bali Village, Bali , Bengkulu City 38119, Indonesia denymurtiyaningsih2012[at]gmail.com
2Lecturer of Master of Biology Education, University of Muhammadiyah Bengkulu , Jl. Bali, Village. Bali, Bengkulu City 38119, Indonesia
Abstract
This Research aim to for the menngetahui of influence model study of Group Investigation (GI) To Ability Think Critical and Result of Learning Student [in] SMA Country 7 Begkulu North. Type Research [is] research of experiment quasi. Desain which [is] conducted this research [is] Randomized design group control pretest-posttest by entangling two class. Sampel taken away from [by] 3 class with technique of Random Sampling. As for technique analyse data used to test hypothesis in this research [is] to use uji-t. Result of research indicate that : there are difference think critical and result of learning student [at] eye study of Mushroom use model study of Group Investigation (GI) and study of konventional. Think critically [of] class of ekperimen higher from [at] control class, average value think critically [of] experiment class [is] 78,40 while class control that is 65,32. And after uji-t obtained [by] value of signifikan ability think critically [of] student that is with Thitung matter this means there are influence of usage of model study of Group Investigation (GI). Become H0 refused and H1 accepted. Result learn higher experiment class of control class, average value result of learning experiment class [is] 78,57, while result learn class control that is 63,87. And after uji-t conducted obtained [by] value of signifikan result of learning student that is with Thitung matter this means there are influence result of learning student between experiment class and control class. Become H0 refused and H1 accepted. Hence thereby pursuant to hypothesis concluded [by] that is there [is] difference which
