Yetursance Y. Manafe, Punaji Setyosarı, Dedi Kuswandi, Saida Ulfa
This research aimed to prove effect instructional strategies of group cooperative on technical skills and self efficacy learners to technical skills with a quasi experimental methods. Research was conducted at SMK Negeri 2 Kupang, Indonesia. Subject is class X Audio Video Technique 2 with 40 people in 2015/2016 school year. Hypothesis testing using ANOVA (Analysis of Variance). Results, there are differences in technical skills of learners who have high self-efficacy with low self-efficacy and interaction between the instructional strategies and self efficacy towards technical skills. Suggestions study, Self-efficacy of learners is one factor to be considered, especially on the practice subjects.