The table 3 shows the test of significance between the posttests of both the experimental and controlled group.
In the table below, it is shown that the computed t-value of 2.10 is less than the tabular t-value of 0.05 giving the decision of accepting the null hypothesis (Ho) and is interpreted that the posttests of the two groups do not have a significant difference.
Then, it can be concluded that the use of video-assisted instruction has the likely effect on the performance of the students as evidenced by the computed value for the posttests of the two groups.
Table 3. Posttests of Both the Experimental and Controlled Group
Instrument
|
Mean |
SD |
Computed t |
Tabular t |
Interpretation |
Decision |
Posttest of Experimental |
14.11 |
1.84 |
2.10 |
2.11 |
Not Significant |
Accept Ho |
Posttest of Controlled |
13 |
2.20 |
p < 0.05 at 17 df
The table 4 below presents the test of significance between the pretest and the posttest of the both experiment and controlled group.
The computed t-value on the experimental group, which is 7.34, is greater than the tabular t-value of 2.11 at 0.05 level of significance.
The data also shows the result of the test of significance between the pretest and the posttest mean scores of the controlled group.
As shown, the computed t-value of 7.21 is also, greater than the tabular t-value which was 2.11 at 0.05 level of significance. It can also be implied that the test gives a positive effect on the performance of the students as evidenced by the difference in the mean of the pretest and posttest. It may be further conclude that the performance of the students can be affected by various aspects and not fully dependent on the teaching strategies that the teacher used. It can be also dependent on the student’s capability of acquiring knowledge, so no matter how usual the strategy may be, as long as the students learn and acquire knowledge from the lesson being taught then the strategy is effective.
Table 4. Pretest and Posttest of Both Experimental and Controlled Group
Instrument
|
Mean |
SD |
Computed t |
Tabular t |
Interpretation |
Decision |
Experimental |
||||||
Pretest |
9.89 |
2.45 |
7.34 |
2.11 |
Significant |
Reject Ho |
Posttest |
14.11 |
1.84 |
||||
Controlled |
||||||
Pretest |
8.94 |
1.86 |
7.21 |
2.11 |
Significant |
Reject Ho |
Posttest |
13 |
2.20 |
p < 0.05 at 17 df