Technical b r Report - International Military Testing Association

.
TL
Mean post-test score
of Es Gp 1 (revised
text, audio supplement)
I
72.80
Mean post-test score
of Lx Cp 2 (revised
text only)
76.00
Mean post-test score
of Es Gp 2 (revised
text only)
Table 4
T3
Mean post-test score
of control group
t d.f. E
66.75 2.258 47.0 .06
Yean post-test score
of control group
66.75 3.227 41.0 .05
Mean post-test score
of Ex Gp 1 (revised
text, audio supplcrwnt)
76.00 72.80 .967 42.0 .44
The inferences from Table J are that both the audio supplemented CDC
and the revised text only CDC yielded significantly higher grades than the
regular CDC. However, there was no significant difference in the final
course grades of the two experimental grwps.
To establish the equivalency of the compietion times, 'a one-way
analysis of variance was made on their means. This analysis is shohn in
Table 5.
Table 5
Source of Vciriat ion F d.f. IT
COl:pietion time of
CDC in days 0.064 2,65 = .9,383
The indication of this analysis is that the CDC completion times for
the three groups were not significantly different.
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