4. An experimental study was conducted in the effect of programmed materials in English on the performance of 20 selected college students. Before the program was implemented the pretest was administered and after 5 months the same instrument was used to get the test result. The following is the result of the experiment. Pretest Posttest X1 X2 20 25 30 35 10 25 15 25 20 20 10 20 18 22 14 20 15 20 20 15 18 30 15 10 15 16 20 25 18 10 40 45 10 15 10 10 12 18 20 25

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4. An experimental study was conducted in the effect of programmed materials in English on the
performance of 20 selected college students. Before the program was implemented the pretest was
administered and after 5 months the same instrument was used to get the test result. The following is
the result of the experiment.
Pretest
Posttest
X1
X2
20
25
30
35
10
25
15
25
20
20
10
20
18
22
14
20
15
20
20
15
18
30
15
10
15
16
20
25
18
10
40
45
10
15
10
10
12
18
20
25
Transcribed Image Text:4. An experimental study was conducted in the effect of programmed materials in English on the performance of 20 selected college students. Before the program was implemented the pretest was administered and after 5 months the same instrument was used to get the test result. The following is the result of the experiment. Pretest Posttest X1 X2 20 25 30 35 10 25 15 25 20 20 10 20 18 22 14 20 15 20 20 15 18 30 15 10 15 16 20 25 18 10 40 45 10 15 10 10 12 18 20 25
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