hat
Metòd. Regression nan lekòl elèv yo vle di sou Volim & Heaviness nan mwayèn lekòl yo mwayèn nòt NINYX 1999, ak informatique regression a nan Midys = 100 pèmèt konparezon ak sa yo te jwenn nan 1976.
eng
Method. Regression of the students’ school mean on Volume & Heaviness on the schools’ mean MidYIS 1999 standardized score, and computing the regression at MidYS = 100 allows comparison with that found in 1976.