chapter iv.docx
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CHAPTER IV
RESEARCH FINDINGS AND DISCUSSIONS
This chapter deals with research description, pre-test and post-test finding,
normality of test, homogeneity of test, comparing the result of two test by t test, and
discussion of the research finding.
A. Research Description
In this chapter, the researcher presents the analysis of the result of
experimental study that had been conducted in SMPN Madiun in the academic
year of !"#$%!"#. The research was started from No&ember until 'ecember
!"#$.
The (III ) and (III * students became the sample of this study. The
students of (III ) were the experimental group and the students of (III * were
the control ones. Those classes could play cooperati&ely in the teaching and
learning process.
This study was aimed to in&estigate the significance difference on the
students+ comprehending in recount and descripti&e text for those were taught by
using film as teaching media for experimental class and were taught by using
songs as teaching media for control group. This research, there were three main
acti&ities, pretest, treatments, and posttest. Those acti&ities were done on fourth
meetings because the limited time which gi&en by the teacher and the material
were explained before by the teacher, so the researcher ga&e pretest, re&iew the
material briefly, explained the strategy and ga&e posttest. The pretest was held at
#
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the first meeting. The treatments conducted in the second and third meetings. The
last was posttest which held to measure the students+ comprehending of recount
and descripti&e text after getting the treatments.
In this research implementation, firstly the students in the experiment and
control groups were gi&en pretest. Then, they were gi&en treatments. The
experimental group got a treatment by using films as teaching media. n the other
hand, the control group was taught by using songs as teaching media. There were
$# students in control group and $$ students in experimental group who oined in
this acti&ity. In the first meeting, the researcher made a re&iew the material of
recount and descripti&e text briefly then the students were conducted in group and
the researcher discussed and ga&e example about the film media for experimental
group and song media for control group. In the last meeting of treatment, the
researcher made se&eral groups and the groups were gi&en the passage of recount
and descripti&e text and the /uestions related to the text and analy0ed the text. The
process of post-test was similar with the pretest. The students of both
experimental and control groups were gi&en writing test. The posttest in this study
had a purpose to measure the students+ writing achie&ement after getting
treatments. The students did their posttest through writing test.
1. Pre-test Finin!
a. The Distri"#tion o$ Pretest Score
The pretest was conducted on the first meeting. There were $$ students of
(III ) as the experimental group and $# students of (III * as the control group
oined the test. The purpose of this test was to 1now the initial condition of the
students+ achie&ement in writing recount text. In this test, the students were as1ed
!
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to doing write the recount text. The time for students doing the pre-test was "
minutes. The a&erage score on the pretest of the experimental group was 2,23
and the control group was 4,3. The following is a table which shows the
distribution of pretest score in experimental and control groups. 5re/uency is the
number of the students in one inter&al. Percentage is the number of students in
one inter&al di&ided to the total number of the students and timed #""6. To show
the achie&ement of the score by the students, distribution of the scores is
described in fre/uency and percentage as follows7
Table .#. The 'istribution of Pretest Score of 8xperimental and 9ontrol *roups
Inter%a&E'peri(enta& Gro#p Contro& Gro#p
Fre)#enc* Percenta!e Fre)#enc* Percenta!e
2" : 2$ # $." # $.!
4 : 43 " "." " "."
4! : 4; 2 !.! #3.
2 : 4# # !. 3 !3."
: 4 #!.# 4 !!." : $ #2.! 2 !;.2
< $$ #""6 $# #""6
There were six polygons to present the result of pretest score. 8ach polygon
described the amount percentage of students in each inter&al. The graphic of the
pretest result can be seen as follows7
$
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2" - 2$ 4 - 43 4! - 4; 2 - 4# - 4 " - $
"
;
#"
#;
!"
!;
$"
$;
"
;
;"
3
0
24
42
12
18
3
0
19
29
23
26
Experimental Group Control Group
Score Test
Percentage
5igure .#. The 'istribution of Pre-test Score of 8xperimental and 9ontrol
*oups
5rom the table and chart abo&e, it could be seen, that the higher percentage
in the control group was !36 in inter&al 2-4#, and the total fre/uency was 3 of
$# students. The lowest percentage in the control group was "6 in inter&al 4-43
and the total fre/uency was " of $# students. Meanwhile, the higher percentage in
experimental group was !,6 in inter&al 2-4# and the fre/uency was # of $$
students. The lowest percentage in the experimental group was "6 in inter&al 4-
43 and the fre/uency was " of $# students.
". Ho(o!eneit* o$ the E'peri(enta& an Contro& Gro#p
)fter ta1ing the pretest, the homogeneity of the two groups was analy0ed.
The homogeneity test was conducted to find out whether the groups+ were similar
on their 8nglish writing achie&ement or not. =omogeneity was to 1now that both
two classes are homogeneous. It was important because the similarity of both
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obects would influence the test result. If both classes are not homogenous, the
treatment also cannot be conducted because both classes do not ha&e same ability
in writing recount text achie&ement.
The homogeneity of pretest of both experimental and control groups was
computed as follows7
5 > c
e
V
V
> ;,"$
,4"$
5 > ",3$$
The result was consulted with the &alue of 5 table with df (e > ?n# @ n!A : !
> ?$$ @ $#A : ! > !, from 5 table obtained 5 table > $,#; ?5 TableA. Because 5count >
".3$$ C 5table > $,#;, so =o is accepted, so the sample &ariance of students+ writing
s1ill scores test of students who are taught using film media ?experimental groupA
and that is taught using song media ?control groupA are homogeneous. It was
concluded based on the students+ writing ability between the experimental group
and the control group on the pretest where the 5 &alue was lower than the 5table
that was $,#; compared with ",3$$ as the 5 table. By 1nowing the result of
homogeneity test, the researcher concluded that the two groups were homogeny so
that the research could be continued on those two groups as the obects of the
study ?see )ppendix 4A.
c. Nor(a&it* o$ the E'peri(enta& Gro#p
The normality of the data was analy0ed as well as the homogeneity. )fter
finishing the process of the pretest data gathering, the normality should be
;
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chec1ed in order to 1now if the data could be analy0ed. Normality was counted to
1now that all scores are normal. If the scores are not normal, the treatment cannot
be conducted because they do not ha&e same a&erage in writing achie&ement
ability.
Based on the data of pretest of the experimental group, the normality was
analy0ed. The computation, D!count was #3,## and DE?FA ?d1A>D! ?;6A ?!A >
$,44$. The result showed that the data was normal because D!count #3,## C
$,44$ then pretest score for the experimental group was said to be normally
distributed. The complete computation can be seen in )ppendix .
. Nor(a&it* o$ the Contro& Gro#p
Based on the computation, D!count was $$,#4. Then, the pretest results of
the control group were consulted with critical &alue of DE?FA ?d1A with F > ".";
and d1>!, whose result was $,44$. Since the &alue of DE?FA?d1A of pretest of the
control group were lower than $,44$, the data were considered to be normally
distributed. The complete computation can be seen in appendix .
+. Posttest Finin!
The posttest was conducted for control class and experimental class. There
were $$ students of experimental group and $# students of control group oined
this test. The posttest in this study had a purpose to measure the students+ writing
achie&ement after getting treatments. The students did the posttest through writing
test. The process of post-test was similar with the pretest the students of both
experimental and control groups were gi&en writing recount text test. The test
spent about " minutes.
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5rom the result, the students+ a&erage scores were analy0ed. The a&erage
score of the experimental group was 4;,;3 and the control group was 4,##. ?see
)ppendix 3A. Below was the table of the students+ distribution score on the
posttest.
Table .!. The 'istribution of Postest Score of 8xperimental and 9ontrol *roups
Inter%a&E'peri(enta& Gro#p Contro& Gro#p
Fre)#enc* Percenta!e Fre)#enc* Percenta!e
2; : 22 ! ." # $.!$
2# : 2 " "."" " ".""44 : 2" #! $.$ 4 !!.;2
4$ : 4 ## $$.$$ ## $;.2
3 : 4! 4 !#.!# ## $;.2
; : 2 # $."$ # $.!$
< $$ #""6 $# #""6
There were six polygons to present the result of posttest score. 8ach
polygon described the amount percentage of students in each inter&al. The graphic
of the posttest result can be seen as follows7
2; - 22 2# - 2 44 - 2" 4$ - 4 3 - 4! ; - 2
"
;
#"
#;
!"
!;
$"
$;
"
;
;"
6
0
3633
21
33
0
23
35 35
3
Experimental Group Control Group
Score Test
Percentage
5igure .!. The 'istribution of Post-test Score of 8xperimental and 9ontrol
*oups
4
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5rom the chart abo&e, it could be seen, that the higher percentage in the
control group was $;,2 6 in inter&al 4$-4 and 3-4!, and the total fre/uency
was ## of $# students. The lowest percentage in the control group was "6 in
inter&al 2#-2, and the total fre/uency was " of $# students. Meanwhile, the
higher percentage in experimental group was $,$6 in inter&al 44-2" and the
fre/uency was #! of $" students. The lowest percentage in the experimental group
was "6 in inter&al 2#-2 and the fre/uency was " of $" students. In sum, from the
result of posttest, the students of experimental group got good grades in inter&al
44-2" whereas the students of control group only got the good grades in inter&al
4$-4 and 3-4!. It means that the treatment by using film as teaching writing
media in experimental group more effecti&e that the treatment by using song
media in control group.
,. The A%era!e o$ Res#&t Test
)fter all the tests were executed, the two tests were compared. The students
did the pretest and the post test well. In this research, the different /uestions of the
pretest and posttest were used, since the purpose of this research was to analy0e
the significance different on pretest and posttest of the two groups. The study
gained some data from the students+ pretest and posttest. The following chart
presented the result of writing pretest and posttest on the experimental and control
groups.
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8xperiment al *roup 9ont rol *roup
"
#"
!"
$"
"
;"
"
4"
2"
3"
#""
68.89 67.69
75.59 74.11
Pretest Postest
AverageTest
Average
5igure .$ The )&erage of Griting )chie&ement Pre-test and Post-test on
the 8xperimental and 9ontrol *roups
)fter analy0ing the two results between the pretest and posttest, it was
found that the mean of the pretest achie&ed by the students in experimental group
who were taught by using film as teaching media was 2,23. Meanwhile, the
mean of the posttest of the same group was 4;,;3. So, the percentage of the
students+ impro&ement of this group was ,346. In a rather simpler obser&ation, it
can be concluded that there was a significant impro&ement between the pretest
and the posttest+s scores achie&ed by the students of experimental group. The
control group who were taught with song as teaching media was also showed the
impro&ement. The mean score of the control group was 4,3 for the pretest and
4,## for the posttest. There was less impro&ement in this group than the
experimental one, it was only ,446.
The difference of the posttest+s mean score between the experimental and
the control group was ",!. Het, it needed ad&anced process to pro&e whether the
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difference was significance or not. It would be pro&en by the t-test, test of
significancy, in further discussion. The result of pretest and post-test table was
pro&ided in order to see the impro&ement of each indi&idual in pretest and
posttest.
In general, almost all of the students made impro&ement in their writing
achie&ement of recount text after the treatment. It was pro&en that the students+
achie&ement of the posttest was higher that of the pretest.
. Data Ana&*sis Res#&ts
The researcher uses t test to analy0e the data of writing s1ill achie&ed by the
eighth grade students+ writing s1ill of SMPN Madiun in the academic year of
!"#$%!"# who ha&e been taught using films and taught using songs. This sub-
chapter would be discussed the T-Test of posttest and gain difference of
experimental and control groups.
)fter getting all the scores, the computation was made. The first way to
1now the significant difference of the experiment could be seen through the
difference of the means of the two groups. The following formula was used to get
the means7
Mx > N
fxΣ
and My > N
fyΣ
In which,
Mx 7 the mean of the experimental group
x 7 the sum of all scores of the experimental group
My 7 the mean of the control group
4"
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y 7 the sum of all scores of the control group
N 7 the number of the subect sample
#. the mean of the pretest of the experimental group
Mx > $$
;,!!4$
> 2,23
!. the mean of the pretest of the control group
My > $#
;,!"32
> 4,3
$. the mean of the posttest of the experimental group
Mx > $$
;,!3
> 4;,;3
. the mean of the posttest of the control group
My > $#
;,!!34
> 4,##
Based on the computation abo&e, the difference a&erage score between the
experimental group and the control group was appeared. n the experimental
group, the a&erage score of the pretest was 2,23 and the posttest was 4;,;3. 5rom
those scores, the difference of the a&erage score between the pretest and the
posttest on the experimental group was ,4. Ghile, on the control group, the
a&erage score of the pretest was 4,3 and the posttest was 4,##. The difference
a&erage of the score between those tests was .!. It means that the difference
a&erage score on the experimental group was higher than in the control group. In
4#
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conclusion, there was good impro&ement of the experimental group+s achie&ement
after they recei&ed the treatment by using film as media in teaching writing
recount text.
1. T-Test of Post-test of Experimental and Control Group
5rom the 1nown data, then we calculated the result of posttest from the
experimental and control group as follows7
!
A#?A#?
!#
!
!!
!
##
−+
−+−
=nn
S nS n
S
S > !$#$$
$",!#4A#$#?3;;,!!A#$$?
−+
−+−
> !
;#3;,4!! +
>!!!,!2
> #,3#
5urther t test is calculated by using the formula7
!#
!#
"##
nnS
x xt
+
−=
t 0 > $#
#
$$
#3#,#
23,2;3,4;
+
−
> $#
#
$$
#3#,#
4,
+
>4$,$
4,
> #,434
4!
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By using a significance le&el ?FA > ;6 and the &alue of df > !, from n# @
n! : ! > $$ @ $# : ! > !, it is obtained t table &alue > #,4#.
Based on the criteria that7 =" is reected if tcount J t table and =" is accepted if
tcount C ttable. The tcount &alue > #,434 J ttable > #,4#. So, it can be concluded that ="
is reected and =# is accepted. Thus, based on criteria established, hypothesis that
states KThere is a significant difference of writing s1ill achie&ed by the eighth
grade students+ writing s1ill of SMPN Madiun in the academic year of
!"#$%!"# who ha&e been taught using films from those taught using songsL is
accepted.
. Disc#ssion of the Research Findings
The mean difference between pretest and posttest of the experimental and
the control group were computed to 1now whether the impro&ement of each group
was significant or not. In this study, the computation showed that the mean
difference between the experimental group and the control group was significant.
5rom the result of the pre-test, it can be found that the mean score of the
pre-test of experimental group was 2,23 and the control group was 4,3. The
result of post test of experimental group was 4;,;3 while the control group gained
the score into 4,##. Based on the score, it can be seen that the score of
experimental group was higher than the control group. The result of the t - test of
mean difference was #,434 and t - table was #,4#. Based on the computation
abo&e, it could be seen that t -&alue J t -table. The hypothesis that KThere is a
significant difference of writing s1ill achie&ed by the eighth grade students+
4$
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writing s1ill of SMPN Madiun in the academic year of !"#$%!"# who ha&e
been taught using films from those taught using songsL was accepted.
Based on the tests conducted, it was pro&ed that the use of film as teaching
media is effecti&e as a strategy to impro&e teaching writing achie&ement of
recount text to the eighth grade students+ writing s1ill of SMPN Madiun in the
academic year of !"#$%!"#.
The use of film as teaching media made the writing and learning acti&ity
more effecti&e and being &aried. The students of experimental group who taught
by using film as teaching media loo1ed more attracti&e and acti&e during the
treatment gi&en by the writer than the control group which taught by song. The
students of experimental group applied the film as a teaching media when they did
the posttest. So, the result of their posttest was higher than their pretest. 5inally,
film as teaching media ma1es the students more moti&ated in learning easier to
grasp the lesson. It can be concluded that in this study, the use of film as teaching
media in teaching writing of recount text was effecti&e of the eighth grade
students+ writing s1ill of SMPN Madiun in the academic year of !"#$%!"#.
5ilms is one of the &isual aids that can be used in a writing class. It ma1es
lessons more fun. It can also be used to create situation for writing classes more
clearly, that the students ha&e big enthusiasm in teaching learning process in
writing class. Mo&ies or films can also teach people about history, science, human
beha&ior and any other subects. Some mo&ies combine entertainment with
instruction, ma1es the learning process more enoyable. Most films ha&e
accompanying sound. The functions of film are to educate, entertain, enlighten
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and inspire the audiences, and in this case the writer tried to use films in the
teaching and learning writing process. The writer thought that film can also be
used as an alternati&e method in teaching writing, because the student will get a
new experience in their class that is /uite different from their daily experience in
their class, and for the teacher a film can be used as an alternati&e method in
teaching that is suitable with their classroom situation.
4;