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8. Finding the value of  tobt: =
1 − 2
SM1-M2 9. Finding the critical value of t t crit in the table.
10. Determining the degree of freedom of t-crit: df= N-1        N= Number of sample
11. Computing t obt and t crit to accept or or reject the null hypothesis: If the t obt t crit , or if degree of probability p  0,05 , the null hypothesis is not
rejected, the two groups were homogenous.
3.15  Data Analysis on the Posttest Score
After  the  treatment  was  given  to    the  experimental  group  and  control group, post test scores of both classes are taken. The post test scores of each group
were  analyzed  by  using  t-test    for  independent  samples  to  find  out  significance difference  between  the  two  groups    under  comparison  KranzlerMoursund,
1999. The  analysis  of  the  posttest  score  was  done  by  taking  the  similar  steps
taken  in the pretest score analysis.  By the end of  the calculation,  t
obt
were gained and  compared  to  t
crit
.  If  the  t
obt
is  equal  to  or  greater  than  tcrit,  the  results  are statistically significant. Then, the null hypothesis is rejected. In other words, there
is a significant difference between the experimental group and control group. The  calculation  of  both  pretest  scores  and  posttest  scores  were  done  with  the
assistance of Statistical Package for the Sosial Sciences SPSS 20 system.
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Then, the conclusion of this research will be based on those results of calculation. The  findings  and  discussion  of  the  data  would  be  presented  and  discussed  in
chapter IV.
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CHAPTER 5 CONCLUSIONS AND SUGGESTIONS
5.1 Conclusions
With regard to the finding of the study, the hypothesis of the study which targeted  the  effectiveness  of  using  audio  storytelling  at  a  private  University
learners  listening  comprehension  ability  was  rejected.  The  results  of  the  t-test confirmed  this  analysis.  The  observed  t  value  calculated  by  the  SPSS  was  2.00
while the critical value on the basis of two-tailed significance p-value 0.05 was determined  2.014  see  table  4.4.  According  to  the  research  question  and
hypothesis, the results of the study can be discussed, here, to clarify the difference between  experimental  group  and  control  group  performance  after  five  meetings
treatment. The  results  of  the  study  say  that  there  was  a  significant  development  in
experimental groups  listening  comprehension ability using audio story task after the  treatment  sessions.  This  development  can  be  defined  because  of  the  audio
story as a complementary material to classroom activities. Designing  stories  to  the  educational  space,  as  discussed  earlier,  are
considered helpful. However, audio storytelling is strange a bit at initial step. That is, affecting factors can build obstacle and barriers to improving language learning
and teaching procedure, especially  listening skill. Yet benefiting  from the  native speakers performance stress, intonation, pitch, and rhythm is something.
Therefore,  the  teacher  actually  tried  to  somehow  consider  subjects feelings  and  prepared  them  for  the  task.  On  the  other  hand,  the  control  group