Large-scale Assessments in Education

An IERI – International Educational Research Institute Journal

Table 1 Descriptive statistics

From: Early school entrance and middle-run academic performance in Mexico: evidence for 15-year-old students from the PISA test

	Obs.	Min.	Max.	Mean
	Obs.	Min.	Max.	All	Regular	Early	Diff.
Early (d)	6199	0	1	0.312
Repeat (d)	6199	0	1	0.108	0.082	0.166	***
Male (d)	6199	0	1	0.474	0.473	0.478
Village (up to 3 k habs.)	6167	0	1	0.155	0.155	0.154
Small town (3 k–15 k habs.)	6167	0	1	0.113	0.106	0.129	***
Town (15 k–100 k habs.)	6167	0	1	0.186	0.189	0.180
City (100 k–1 m habs.)	6167	0	1	0.294	0.291	0.300
Large city (1 m+ habs.)	6167	0	1	0.252	0.258	0.237
Mother educ. (elementary d.o.)	6181	0	1	0.063	0.065	0.057
Mother educ. (middle d.o.)	6181	0	1	0.152	0.154	0.148
Mother educ. (highschool d.o.)	6181	0	1	0.302	0.297	0.312
Mother educ. (technical. d.o.)	6181	0	1	0.017	0.017	0.017
Mother educ. (highschool)	6181	0	1	0.163	0.161	0.167
Mother educ. (technical)	6181	0	1	0.110	0.105	0.121	*
Mother educ. (college)	6181	0	1	0.193	0.200	0.178	*
Mother does not work (d)	6199	0	1	0.353	0.345	0.370	*
Computer at home (d)	6174	0	1	0.582	0.582	0.563	*
Internet at home (d)	6177	0	1	0.688	0.688	0.688
Private school (d)	6167	0	1	0.127	0.135	0.111	**
Computers/student	6094	0	3.5	0.260	0.265	0.249	*
Teachers with masters (%)	6077	0	1	0.226	0.228	0.222
Students/teacher	6163	2.3	100	33.62	33.38	34.13
Class size	6125	13	53	41.92	41.71	42.36
Shortage of material (i)	6134	− 1.42	2.96	0.495	0.463	0.568	***
Shortage of staff (i)	6109	− 1.46	4.04	− 0.004	− 0.026	0.046	*
Large school (d)	6199	0	1	0.769	0.762	0.785
Medium school (d)	6199	0	1	0.100	0.105	0.089	*
Small school (d)	6199	0	1	0.131	0.133	0.127

All and by regular and early students
Difference: ***.-99% significance, **.-95% significance, *.-90% significance
(d).- dummie variable; (%).- percentage variable; (i) index variable

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