穨Review. Pdf

Table 4.19 Independent Samples Test of Low- Achievers’ Achievement Tests 
Monthly Exams 
Low/Exp 
Low/Control 
MD 
n 
t 
p 
1
st
18.33 
8.44 
9.88 
9 
2.05 
.054 

---

111
2
nd
43.91 
33.44 
10.47 
9 
1.04 
.300 
3
rd
43.25 
23.55 
19.69 
9 
2.02 
.057 
Both the high- and low-achievers in the control group did not perform 
significantly better than those in the experimental group, as shown in Tables 4.18 and 
4.19. 
4.3.2 Results of Oral Task 
In order to investigate the inter-group differences in the students’ oral 
performance, the average of each of the five grading items, i.e. appropriateness (20%), 
vocabulary (20%), grammar (20%), intelligibility (20%), and fluency (20%) was 
computed and compared. The results were shown in Table 4.20. 
Table 4.20 Independent Samples Test of High-Achievers’ Oral Performance 
Oral Task Experimental Control 
MD 
n 
t 
p 
Pre-test 
13.77 
14.33 
-.56 
30 
-1.06 
.29 
Post-test 17.16 
15.00 
2.16 
30 
7.13 
.00** 
** p < .01 
According to Table 4.20, the high achievers in the experimental group scored 
slightly less than those in the control group in the pre-test. The high-achievers in the 
experimental group scored 13.77 while those in the control group scored 14.33 on the 
average of the five grading criteria in the pre-test. The difference was not significant 
(p= .29). But the high-achievers scored significantly higher (p= .00) than those in 
the control group in the post-test. The score of the post oral task in the experimental 
group was 17.16, while that of the control group was 15.00. The mean difference of 
2.16 was statistically significant (p < .05). 
Likewise, the average of the five grading criteria was also computed using the 
Independent Samples Test to compare the inter-group differences of the 
low-achievers’ oral performance in both groups, as shown in Table 4.21.