Observation design was given two times, namely before and after experiment. Observation which was conducted before experiment O
1
was called Pre-test and observation which was conducted after experiment O
2
was called Post-test. The difference between O
1
and O
2
was that O
1
-O
2
were assumed as the effect of the treatment or experiment. In the experimental class
the use of social media Facebook as the medium of Uploading and Downloading the learning materials and exercises, students could either browse the answers
from the links that had been provided or browse by themselves instead.
B. Place and Time of Research
This study was conducted in MAN 3 Yogyakarta in XI Social 1 and XI Social 2 which numbered 55 students. This school was located in Magelang
Street Km. 4, Yogyakarta. The study included proposal writing, research implementation, and report writing which was done in April-June 2016.
C. The Operation of Research Variable
1. Self-confidence Self confidence was an individual’s awareness of power and
ability, sure of self-confidence, both spiritually and physically self- satisfied, able to react carefully as well as control it in achieving the
desired goals. The indicators of self-confidence includes self-respect,
self-awareness, commitment, positive thinking, communication, firmness, self-image, and patience.
2. Learning independence Learning independence was a self-access learning activity which
was based on consideration and responsibility over the learning process. Students had awareness of independent learning and planning
independent learning activities confidently and attempting to solve problems they faced. The indicators of learning independence include
dynamism, self-confidence, integrity, autonomy, responsibility, and initiative.
3. The effectiveness of the use of the Internet medium as the learning source The effectiveness of the use of the Internet medium as learning
source was the degree of success in applying the Internet-based learning related to the improvement in self-confidence and learning independence
of students who took part in the learning concerned. To determine whether or not the use of the Internet would be effective was done
through observing the score for students’ learning independence before
and after the treatment was given. It would be effective if the average of the Post-test scores in the Experimental Class was higher than those in
the Control Class. The treatment employed in this study was the use of the Internet-based learning.
D. Population and Research Sample
1. Population
According to Sugiyono 2011: 61, “Population was area of generalization comprised of objectsubject with certain quality and character
determined by the researcher to learn and conclude”. Research population
was all students XI Social in MAN 3 Yogyakarta in the academic year 20152016 which numbered 85 people which are divided into three classes,
namely XI Social 1, XI Social 2, and XI Social 3.
2. Sample
“Sample was part of quantity and characteristic of the population” Sugiyono, 2011: 62. Sample taken from the population had to be
representative. Suharsimi Arikunto 2006: 130 further suggested that As a guide for a large number of subjects it could be taken 10-15
or 20-25 or more, depended at least on: 1 The opportunity of the researcher seen from time, effort, and fund.
2 The scope of the study seen from subject, since it dealt with the
minimum of data. 3 The capacity of the risk the researcher dealt with. For the high-risk
research, with the large-scale sample, the result would be better.
XI Social 2 served as Controlled Class while XI Social 1 served as Experimental Class. Both were in similar condition, hence it was hoped that
the different treatment towards each class would be reflected by the result of the study.
Table 1. Class Distribution
Class Number of Students
Information
XI Social 1 28
Experimental Class XI Social 2
27 Control Class
E. Research Instrument
