The Implementation of Group Investigation Model on Learning Outcome at The Topic Ecosystem Class X In SMA Negeri 11 Medan Academic Year 2014/2015
ABSTRACT: This research was
carried out to find out The Implementation of Group Investigation Model on
Learning Outcomes at The Topic Ecosystem Class X in SMANegeri 11 Medan Academic
Year 2014/2015. Therefore, an experimental researchwas carried as the research
as a research design. The population was 2014/2015 academic years students, in
the second years students of SMAN 11 Medan,especially the students of class X
which consisted of 320 students. From thepopulation was taken 80 students as
the sample by using Random Sampling. Theywere divided into two groups, 40
students in experimental groups taught by usinggroup investigation model and 40
students in control group taught by using direct instruction.
Based on the result of research obtained the mean pretest in class
control 44.8 and experimental class 51.7, this shows the initial ability of the
both classes issame similarity. Then the both of classes were given a different
treatment, theexperimental class used Group Investigation and control class
used Direct Instruction. After the learning had finished, the both of classes
given posttest ofcontrol class 77.9 and experimental class 81.75.The result
test t obtained that t count > t table (2.03 < 1.66) then H0 is rejected
and Ha accepted. Furthermore, based on percentage of students activity showed
that students in experimental class more active than class control. It can be
conclude that is effect of group investigation learningoutcomes on students at
topic ecosystem in class X SMA Negeri 11 Medan AcademicYear 2014/2015.
Penulis: Farahnaz Afriliandini
Lubis, Meida Nugrahalia
Kode Jurnal: jpbiologidd150808
