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Change in critical thinking between students in laboratory-centered and lecture-demonstration-centered patterns of instruction in high school biology

ScholarsArchive at Oregon State University

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Title Change in critical thinking between students in laboratory-centered and lecture-demonstration-centered patterns of instruction in high school biology
Names Sorensen, Lavar Leonard (creator)
Williamson, Stanley E. (advisor)
Date Issued 1965-08-16 (iso8601)
Note Graduation date: 1966
Abstract This investigation was designed to analyze change in critical .
thinking between students in laboratory-centered and lecture-demonstration-centered patterns of instruction in high school biology.
Twenty biology classes were randomly selected from the four
senior high schools in the Salt Lake City School District. Class enrollment
ranged from nine students in one class to thirty-six in
another. Of the twenty classes selected, ten were randomly selected
and taught by the lecture-demonstration-centered patterns of instruction;
the remaining ten classes were taught by laboratory-centered
patterns of instruction. Sixteen teachers taught the twenty classes.
The students participated in a pre-testing program during the
first two weeks of December 1964. The testing program provided
statistical basis for general scholastic ability with a pre-test
knowledge of the understanding of science; critical thinking; and attitudes
of open and closed mindedness. Final testing was conducted
during the first two weeks of May 1965, to determine the students'
gains in these areas during the school year.
Each group of ten classes used the same course of study. The
course materials consisted of two Laboratory Blocks developed by
the BSCS. Plant Growth and Development and Animal Growth and Development
were the blocks used. The course materials were the same,
the teaching methods were different.
Data used in this study were obtained from five tests. They
were: Otis Quick Scoring Mental Ability Test, Gamma: Form Am,
Watson- Glaser Critical Thinking Appraisal, Form Ym, Cornell Critical
Thinking Test, Form X, Dogmatism Scale, Form E, Test on
Understanding Science, Form W.
The following conclusions were drawn from the data analyzed in
this investigation.
1. The change in critical thinking and understanding of science
of students in the laboratory-centered patterns of instruction
was significant for all levels of intelligence at the 0.5 percent
level.
There was no significant change in critical thinking and
understanding science of students in the lecture-demonstration-centered patterns of instruction.
2. Evidence was obtained indicating a moderate correlation, but
substantial relationship between change in critical thinking and
change in understanding science.
3. Evidence was obtained to indicate that there was no relationship
between a student's mental ability and change in critical
thinking. Students with high mental ability made higher scores
on critical thinking tests than those with lower mental ability,
but the amount of increase in test scores at the higher mental
ability level was approximately equal to the amount of increase
in test scores at all lower mental ability levels. Mental
ability was not directly related to change in critical thinking.
4. Evidence was obtained to indicate that there was no relationship
between a student's mental ability and change in understanding
science.
5. Change in dogmatism of students in the laboratory-centered
patterns of instruction was significant for all levels of intelligence
at the 0.5 percent level. Students with high mental
ability showed very little change in dogmatism. They scored
low on the Dogmatism Scale when tested, thus they remained
open-minded.
The higher the mental ability of the student, the less dogmatic
he was. Conversely, the lower the mental ability of
the student the more dogmatic he was.
The amount of change in dogmatism at each level of mental
ability was approximately equal. The evidence to support
the above statement pertains only to the laboratory-centered
classes. There was no significant change of students in the
lecture-demonstration classes.
Genre Thesis/Dissertation
Topic Biology -- Study and teaching (Secondary)
Identifier http://hdl.handle.net/1957/48635

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