Random intercept and random slope 2-level multilevel models

Random intercept model and random intercept & random slope model carrying two-levels of hierarchy in the population are presented and compared with the traditional regression approach. the impact of students' satisfaction on their grade point average (gpa) was explored with and without controlling teachers influence. the variation at level-1 can be controlled by introducing the higher levels of hierarchy in the model. the fanny movement of the fitted lines proves variation of student grades around teachers.