摘要：The present study aims to investigate the effectiveness of Research Based
Learning (RBL) in improving students’ learning achievement in solving two
dimensional arithmetic sequence problems. The study applied triangulation method
including qualitative and quantitative methods. The research subjects were 4thsemester
students of higher education. The quantitative method was applied to
analyse the learning achievement test, while the qualitative one was applied in the
form of observation and interview. The collected data were analysed by using
inferential statistics t-test. The result of t-test indicates that the sig (2-tailed) of
independent sample t-test of pre-test is 0.853 (p>0,05), thus it is not significant. It
implies the two classes are homogeneous in term of student achievement test. The
data analysis of independent sample t-test of post-test, the sig (2-tailed) is 0.00
(p=<0,05), thus it is significant. It implies that the student achievement tests of two
classes are different after the implementation of RBL. It shows that the students’
achievement result of experimental class is better than the control class. The
implementation of RBL is proven effective in improving students learning
achievement in solving two-dimensional arithmetic problems.
