Abstract:
The objective of the present study is to determine the impact of the medium
of instruction on the performance of undergraduate students in university
examinations. The results of six Biological Science course units in Zoology
and Microbiology and six Physical Science course units in Physics and
Statistics & Computer Science of two groups of undergraduates who entered
the Faculty of Science of the University of Kelaniya in years 2000 and
200 I were considered in the analysis. Those who have entered in 2000
followed all course units in Zoology, Physics and Statistics & Computer
Science in Sinhala medium and Microbiology in English medium. Those
who entered in 2001 followed all Microbiology course units and those in
other subjects from 2nd semester onwards in English medium. Analysis of
results using the Kolmogrov - Smimov tests revealed that the medium of
instruction has no significant effect on the performance of undergraduates
in university examinations.