Developing a discriminant function for streaming students into science and non-science in Acheh
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Date
2007
Authors
Khairul Umam
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Journal ISSN
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Abstract
This research was aimed at developing a discriminant function to stream
students into either science, social-science or social stream. This research
examined and analyzed the effect of average scores of students’ interest and
study time of Mathematics, Sciences (Biology, Physics and Chemistry),
Indonesian Language, English Language, Islamic Religious study, Nationality,
Social and Culture, and Accountancy (Economy). The influence of students’
interest in study time is also analyzed.
The testing is conducted using discriminant analysis method which
produces a discriminant function. This function can be used as an indicator to
stream students into the proper stream according to their interest and ability. The
research data were gathered from the respondents’ performance in all subjects
taken at third year after completing first and second year examination.
The data include average scores, students’ interest and study time. There
are 408 respondents involved, 118 of them are from science stream, 121 from
social-science and 169 are from social stream.
The result of data which was analyzed using SPSS software (V.11.5), the
discriminant functions Y (f(x)) obtained as follows Y1 (Science stream), Y2
(Social-Science stream) and Y3 (Social stream).
Each column of SPSS (V.11.5) output contains coefficient estimation for
one classification function for each group (stream). The coefficient is also known
as Fisher’s linear discriminant function and can be used directly for classification.
The coefficients are obtained for each group, and a case is classified into group
with the biggest discriminant score.
The process of classification of the new data to the discriminant function
resulted in different Y1, Y2, and Y3 scores. If the score from one of the functions is
higher than the others, then the student can be streamed into the corresponding
stream.
By using the resulted new function, when students get higher average
scores in science and social subjects, they can then be streamed into science.
Whereas, students who get lower average scores in science and social subjects
can be streamed into social stream.
Description
Master
Keywords
Art , discriminant , streaming students , science , non-science