搜档网
当前位置:搜档网 › MIT-SCIENCE-Lectures-lecture6maimonidespaper

MIT-SCIENCE-Lectures-lecture6maimonidespaper

Slide1 Slide2

C LASS S IZE:M AIMONIDES R ULE

? Strong debate about impact school quality,in particular class

size.

? I.e Kremer (2002) argues that class size in Kenya is too small,

could increase education by reallocating inputs (textbooks) or

making school free (uniform,fee).

? In the US: very contrasted results

? Angrist-Lavy: Impact of class size on test scores in Israel

D ETERMINATION OF C LASS SIZE

? Small class size in poorer areas in Israel:

? →class size negatively correlated with test score.

? Rule inspired from Maimonides (talmudic scholar) determines

class size

? up to 39, one teacher, 40-79,2 teachers, etc....

? Generates seesaw in predicted student teacher ratio.

? Some variation around that, but generally quite tight.

I DENTIFICATION STRATEGY AND RESULTS

? Idea: school with 39 students in a divisions should not be very

different from school with 40 student in a division, but

student-teacher ratio drops suddenly.

? Do we see the same for tests score? See Figure: test score as a

Slide3

function of student per division.

? Generalization: use predicted class size as an instrument for

actual class size, after controlling for smooth function of number

of pupil per divisions (square, cubics etc...).

? Find signi?cant improvements in tests scores: a decrease of 10 in

the pupil/teacher ratio increases reading scores by 2.5 points

(from an average of 72 points)

I DENTIFICATION STRATEGY AND RESULTS 1 I DENTIFICATION STRATEGY AND RESULTS 2

相关主题