before the implementation of Classroom Action Research; it is to measure student’s vocabulary. Post-test is a test which was given after the implementation
of Classroom Action Research. In this research, the kind of test is multiple choices.
E. Technique of the Data Analysis
Technique of the data analysis in this research is used quantitative data. Because the observation during interview and teaching learniing process do before
and after action research. In analyzing qualitative data, the writer got the avarage of student’s vocabulary score per action in one cycle. It used measure how well
the students vocabulary in vocabulary by using pictures. It uses the formula:
2
_
X : mean
x : individual score n : number of students
After that , the writer tries to know the class percentage which pass the KKM 60, the writer uses the formula:
3
P : the class percentage F : total percentage score
N : number of students After getting the
mean of students’ score per actions, the writer identifies whether or not there might have any improvement of students’ vocabulary from
2
Sudjana, Metoda Statistika, Bandung: PT. Tarsito, 2002, p. 67.
3
Anas Sudijono, Pengantar Statistik Pendidikan, Jakarta: PT. Raja Grafindo Persada, 2008, p. 43.
_
∑x X
= ── n
F P
= ── X 100 N
pre- test up to students’ average score in cycle 1 and cycle 2. In analyzing that is
phase, the writer uses the formula:
4
P : percentage of students’ improvement y : pre-test result
y1 : post-test 1
P : percentage of students’ improvement y : pre-test result
y2 : post-test 2.
II. FINDING RESEACRH
A. Data Description
The writer put the result in the result of the data including the pre-test, post- test 1, and post-test 2 into a tables as following:
Table 4.2 The Students’ Vocabulary Score of Pre-test, Post-test 1 and Post-test 2
STUDENTS’ NUMBER
PRE-TEST POST-TEST
POST-TEST 2
1 40
50 70
2 30
55 80
3 35
55 60
4 30
55 75
5 55
75 85
6 25
45 55
7 45
65 80
4
David E. Meltzer, The Relationship between Mathematics Preparation and Conceptual Learning Gain in Physics: A Possible Hidden Variable in Diagnostic Pretest Scoces, Iowa:
Departement of Physics and Astronomy, 2008, p. 3.
y - y1 P =
─── X 100 y
y2 - y P =
─── X 100 y
