Number of Studies
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1
Influence
number of meta-analysis
2
Acceleration2
3
Charter Schools1
4
Class size3
5
Classroom management1
6
Computer based instruction81
7
Creativity1
8
Diet1
9
Enrichment3
10
Ethnicity1
11
Feedback23
12
Home Environment2
13
Mentoring2
14
Mobility3
15
Out of school experience2
16
Peer influence1
17
Piagetian programs1
18
School size1
19
Self Report grades5
20
Small Group learning2
21
Student Control over learning
2
22
Summer Vacation1
23
Teacher Immediacy1
24
Teacher Student relations1
25
Teacher Subject matter knowledge
2
26
TV3
27
Welfare1
28
Within class grouping2
29
Worked examples1
30
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33
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35
36
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38
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42
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48
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69
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73
74
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76
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79
80
81
82
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84
85
86
87
88
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90
91
92
93
94
95
96
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99
100
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