Effectiveness Index
Effectiveness Index (Effectiveness Index) is the number that represents the progress
of students in learning by comparing the test scores increased from pretest scores
from posttest. And points to the score or the highest score of the test
before class. When evaluating teaching materials were produced. We tend to look at the effectiveness of teaching
and assessment in the media. Normally, it will evaluate the differences of scores
on two different types of test scores before and after the test to study
for a test, or about achievement. Between the treatment and control groups
in practice mostly focuses on the effect the real difference rather than the result of a statistical difference
, but in some cases, comparison, only two traits, it may not be enough, as in the case of experimental
use. Media in teaching a group that first appeared to have scored 18% pretest
posttest scores of 67% and 2 to pretest scores from
both tests are based. (The pretest), which will result in different scores
after learning that grew up case (Goodman and Schneider. 1980: 30-34) points
(in the pretest), which will vary. Results of the testing after learning that would
increase the maximum of each case (face during the lockout. P.p.p.: 1-2; According to Hovland. In 1949:
Unpaged) has proposed Effectiveness Index. (Effectiveness Index), which is the difference of
testing before the trial and experiment after experiment with the highest score can be increased
to Hovland suggested that the relationship of the trial will be done correctly, of course,
correct. Regardless of the difference in basis points. (Pretest scores And points to
the fullest Effectiveness Index is an indication of the extent and effectiveness of the media Webb attention to
the percentage of points a student from a percentage of the sample, and then determining the percentage of the control group,
the results will reflect the percentage increase (. or decrease) compared with the control group, index
performance. To find out the following form.
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