2215-3535
2215-3535
S2215-35352015000200020
10.15517/ap.v29i119.18810
USA
USA
USA
USA
00
12
2015
00
12
2015
29
119
20
28
[
2012
Working Paper # 18662
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[
2011
46
399-424
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[
2008
142
715-30
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[
1990
19
2
2
232-9
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[
2008
22
31-72
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[
2006
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[
2012
Bethesda, MD
]
[
1970
]
[
2013
67
169-80
]
[
2007
42
488-509
]
[
2007
Hyattsville, MD
]
[
2004
99
609-18
]
[
Institute of Education Sciences
2009
]
[
2010
121
1005-13
]
[
2013
20
361-83
]
[
2013
52
380-92
]
[
2006
29
407-23
]
[
2014
36
2
2
170-85
]
[
2013
92
217-33
]
[
1983
70
1
1
41-55
]
[
1985
39
33-8
]
[
1997
127
757-63
]
[
2002
359
614-8
]
[
2002
]
[
2008
95
1-13
]
[
2013
1
1-10
]
[
1984
]
[
2006
2nd
]
[
1996
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[
1999
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[
2013
32
853-77
]