穨Review. Pdf

Table 4.2 Inter-Group Statistics of Pre -test Oral Task (N=60) 
Pre-test 
M 
SD 
t 
P 
Control
70.40 
5.90 
Experimental 
68.73 
5.71 
.78 
.43 
 
After running the t-test through SPSS, the results in the post test of the oral task 
indicated that the experimental group scored significantly higher than the control 
group, with the mean score of 76.80 against 69.53 of the control group as shown in 
Table 4.3. The experimental group gained 7.26 more than the control group on the 
post-test of oral performance. Such a mean difference was statistically significant 
because the p-value was as low as .009, as the last column of Table 4.3 displayed.
 
 
 
 

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Table 4.3 Inter-Group t-test of Post-Oral Performance (N=60) 
n 
M 
MD
13
SD 
T 
p 
Control
30 
69.53 
7.26 
8.33 
Experimental 30 
76.80 
5.70 
2.78 
.009** 
** p < .01 
In addition to the inter-group analysis presented above, the results of the 
intra-group comparison were also presented as follows. The first intra-group 
analysis was made on the experimental group. As shown in Table 4.4, the 
experimental group gained 8.07 in the post-test, comparing with the scores they got 
from the pre-test. Such gain was statistically significant since the p-value was as 
low as .00. 
Table 4.4 Results of t-test on Oral Task in Experimental Group (N=60) 
M 
n 
SD 
MD 
(Post-Pre) 
t 
p 
Pre 
68.73 
30 
5.71 
8.07 
3.76 
.00** 
Post 
76.80 
30 
5.70 
** p < .01 
In contrast to the significant improvement of the experimental group in the oral 
task, the control group, instead of making progress in the post-test oral performance, 
scored lower than their own pre-test performance. As shown in Table 4.5, the mean 
score of the pre-test in the control group was 70.50, but the score of the post-test was 
69.53, slightly lower than the pre-test. In other words, unlike the significant 
progress in the experimental group’s oral performance, the control group’s scores on 
oral performance dropped 0.97 as illustrated in Table 4.5. The difference between 
the score of the pre-test and that of the post test was not statistically significant (p 
= .76), as shown in Table 4.5.