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A comparison of the relative effectiveness of teaching composition by closed-circuit television and by conventional classroom procedures

ScholarsArchive at Oregon State University

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Title A comparison of the relative effectiveness of teaching composition by closed-circuit television and by conventional classroom procedures
Names Patty, Austin Horace (creator)
Baron, Denis (advisor)
Date Issued 1966-07-19 (iso8601)
Note Graduation date: 1967
Abstract This study was designed to test the relative effectiveness of
teaching Writing 111 at Oregon State University by closed-circuit
television as compared with conventional classroom procedures; the
hypothesis was that the students taught by television (the experimental
group) would achieve as well as the students taught in conventional
classrooms (the control group) in terms of writing samples.
The experimental group was comprised of 130 students at Oregon
State University, taking Writing 111 on closed-circuit television
during the Winter term of 1965. An attempt was made to match each
of these students with a student of comparable skill in writing, drawn
from 2,577 students of the same university (the control group), taking
Writing 111 in conventional classes during the Fall term of 1964.
Pairs from the experimental and control groups were matched on the
basis of scores on the writing samples. An IBM card-sort procedure
was used to match 38 pairs on this basis from the experimental and
control groups. A computation of the differences between the 38 pairs
showed that the experimental and control groups were statistically
comparable. Pairs were arranged in sub-groups on the basis of
achievement on the pre-test: the highest third, the middle third, and
the lowest third. Achievement comparisons were later made for
these sub-groups.
Writing samples were used as the criterion measures for both
the pre-test and the post-test. Together they provided the criteria
for testing the assumption and the hypothesis. The assumption that
learning did occur in the experimental and control groups was tested
by comparing the average score of each individual of a pair on the
pre-test and post-test. Subtracting the score on the pre-test from
the score on the post-test established whether or not the groups had
made a mean gain in achievement. The hypothesis that Writing 111
could be taught as effectively on television as in conventional classrooms
was tested in terms of the average scores of each pair on the
post-test: the differences between the scores of each of the 38 pairs
was computed by subtracting the control student's average score from
the experimental student's average score. A t-test of significance
was used to determine the statistical level of significance of these
differences.
However, in order to be employed as matching and achievement criteria, the writing samples had to be reliable measures of writing
skill; i.e. the scores on these tests had to reflect the writing achievement
of the students rather than the subjective judgments of the
graders. To check the reliability of the scoring of the writing
samples, a correlation coefficient was computed on the scores given
by the three graders of these samples. The resulting coefficients
established the reliability of the scoring of the writing samples. All
the reliability coefficients were at or above .70, an acceptable level
for the purposes of this investigation, and thus justified the use of
writing samples as criterion measures for matching pairs and testing
the hypothesis and assumption.
The assumption was confirmed: both experimental and control
groups showed a mean gain in achievement. The hypothesis was also
confirmed. There was no statistically significant difference between
the achievement gains of the experimental and control groups; hence
students taught by television achieved as well as students taught in
conventional classes in terms of writing samples. The low experimental
sub-group made a greater gain, in relation to the comparable
control sub-group, than did the other experimental sub-groups.
Genre Thesis/Dissertation
Topic Closed-circuit television
Identifier http://hdl.handle.net/1957/47193

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