0187-893X 0187-893X S0187-893X2020000400122 10.22201/fq.18708404e.2020.4.70850 Spain Spain 00 00 2020 00 00 2020 31 4 122 130

2003 35 35 70-9 2016 86 86 8-18 2019 97 97 8-18 2005 56 56 6-16 2006 17 4 4 476-82 2017 14 28 28 21-40 Ministerio de Educación de Chile 2008 475-86 2012 11 11 11 69-83 2018 48 6 6 1409-31 2004 1991 7 7 75-83 2006 24 1 1 5-12 2008 26 2 2 153-76 2009 2008 63 8 8 760-9 2017 461-6 2004 21 1 1 37-67 2011 2011 24 24 161-82 2016 54 1 1 51-77 2002 20 3 3 369-86 2012 70 70 75-82 2016 22 1 1 26-38 2019 30 2 2 114-28 2017 15 5 5 797-816 2013 2012 21 21 705-27