Babkina, V. (2018). Phonological interference of mother tongue over the English

Comparison of pre-testing and post-testing results in Sample 
group
The table and the graph below demonstrate the sample group´s pre-
testing and post-testing average score results in comparison. 
Table № 13. Comparison of pre-testing and post-testing average score results in 
Sample group. 
Sample group 
Average score 
Divergence 
Pre-testing 
11.82 
Post-testing 
13.35 
+ 1.53 

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96 
Graph № 6. Sample group pre-testing and post-testing results. 
According to Table 13 and Graph 6, the average increase of 
pronunciation improvement after the use of the exercises and instruction 
is 1.53 points. However, not all the students experienced the progress. 
For instance, Student 13 had a decrease in the score (from 6 point to 5 
points) since he was constantly missing classes and as a result failed the 
course in general. As for Student 2, there is neither an increase nor a 
decrease of the score. The learner did not make enough effort to improve 
his pronunciation proficiency. Thus, it is possible to say that one student 
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
SG Pre-testing results
SG Post-testing results

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97 
obtained the below 11 points score and another one did not improve the 
pronunciation at all. Consequently, we can conclude that there is progress 
in pronunciation of the targeted consonant sounds among the majority of 
the participants in the sample group. This improvement was the result of 
the pronunciation practice activities and instructions applied during the 
intervention of the present investigation. 
The graph below presents the comparison of the pre-testing and 
the post-testing results in the sample group as regards to each case of 
phonological interference.
Graph № 7. Comparison of pre-testing and post-testing average score results of each 
problem case in Sample group. 
1
2
3
4
5
6
7
8
9
10
Case 9
Case 8
Case 7
Case 6
Case 5
Case 3
Case 1

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98 
The table below presents the average scores and the divergence of 
each case of phonological interference individually in the sample group 
at the beginning and at the end of the intervention. 
Table № 14. Sample group average scores and divergence for each problem case of 
phonological interference. 
Graph 7 and Table 14 show that the participants in the sample 
group made an improvement of the L2 consonant sounds pronunciation 
in all the cases studied in the paper. According to the results, the learners 
made more significant progress in pronunciation of the problem cases 3 
and 9. Case 8 does not show sufficient improvement.
Case 
1 
Case
3 
Case
5 
Case
6 
Case 
7 
Case 
8 
Case 
9
SG 
pre-
testing 
6.76 
5.94 
5.53 
5.88 
5.35 
4.53 
7.41 
SG 
post-
testing 
7.59 
6.94 
6.35 
6.59 
6.06 
5.12 
8.48 
Divergence +0.83 +1.0 
+0.82 
+0.71 
+0.71 +0.59 +1.07 

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