Slope and Intercept of Regression Equations of The Correlation between Metacognitive Skill and Concept Gaining of The Students having Different Academic Capabilities In Biology Learning at Senior High Schools In Malang, Indonesia
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Regression analysis is a tool used to study the functional correlation between variables presented in the form of regression equations and regression lines. In this study, regression analysis was performed to investigate the correlation between students’ metacognitive skills and their Biology concept gaining. Regression analyses performed on different learning models will generate several regression equations. Those regression equations can be analyzed further to determine whether the regression lines formed are parallel and coincide, parallel but do not coincide or intersect. This study aims to reveal the regression lines of seven learning models implemented on students having different academic abilities in class XI of Senior High School. The study was conducted for one semester in 2013/2014 academic year with a total sample of 350 students. The results of the data analysis showed that regression lines of the correlation between metacognitive skills and concept gaining being compared, both on the students of low academic ability and on those of high academic ability, on the same or different learning models, tended to be parallel. The regression lines which were parallel and coincide were 53.07%, parallel but did not coincide were 26.53%, and those which were intersected were 20.40%. The tendency of the parallelism of the regression lines of the correlation between students’ metacognitive skills and concept gaining at various or all conditions, still needs to be studied further.