0123-1294
0123-1294
S0123-12942017000300434
10.5294/edu.2017.20.3.6
Chile
Chile
Canada
Chile
00
12
2017
00
12
2017
20
3
434
447
[
2000
3-6
]
[
1994
54
54
125-50
]
[
2010
9
27
27
269-92
]
[
2001
2
]
[
2001
49-58
]
[
2002
]
[
2010
36
1
1
235-63
]
[
2010
]
[
2005
77
3
3
]
[
2011
6
42
42
]
[
2007
77
37
37
271-81
]
[
2014
]
[
2008
a
79-105
]
[
2008
b
73
39
39
437-54
]
[
2012
4
8
8
319-38
]
[
2004
]
[
2006
4
]
[
1994
4
8
8
47-53
]
[
2009
350
350
203-18
]
[
2003
455-517
]
[
2012
38
2
2
355-73
]
[
2012
5
4
4
15-26
]
[
2016
79
1
1
29-45
]
[
2005
7
1
1
7-23
]
[
2015
79
1
1
12-9
]
[
2010
22
234
234
]
[
2011
]