Skip to main content
Large-scale Assessments in Education

An IERI – International Educational Research Institute Journal

Fig. 2 | Large-scale Assessments in Education

Fig. 2

From: Exploration of the linear and nonlinear relationships between learning strategies and mathematics achievement in South Korea using the nominal response model : PISA 2012

Fig. 2

Association between Students’ Learning Strategy Score and Mathematics Score

Note. Each dot indicates an individual participant’s first plausible value of mathematics scores and learning strategy scores. The green line characterizes the best fit linear regression of the mathematics score on the first learning strategy score in the NRM; the blue line represents the best fit quadratic regression of the first mathematics score on the first learning strategy score in the NRM; the red line represents the best fit cubic regression of the first mathematics score on the first learning strategy score in the NRM. The reason for using only the first plausible values instead of five plausible values for the scatterplot is that the five plausible values made the plot too complicated to read but did not change the trend of the relationship between learning strategy scores and mathematics scores

Back to article page