With an educational issue that has caught the attention of many countries in the world (study load), a population of 8th graders from a typical Chinese metropolitan city (40,536 from 118 schools), and an advanced statistical strategy (multilevel piecewise regression), we examined whether there was a turning point in terms of the effects of study…

Using the Descriptive-correlation research design, this study aimed to assess the students' perception on Self-Learning Module in determining the English proficiency of Grade 8 students of Adelina I National High School. Random sampling was used in this study to identify the number of Grade 8 respondents. Mean and standard deviation as well as…

In educational effectiveness research, it frequently has proven difficult to make credible inferences about cause and effect relations. The article first identifies the main categories of threats to valid causal inference from observational data, and discusses designs and analytic approaches which protect against them. With the use of data from 22…