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 Information Works! 2000
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Infoworks! 2000 Reports
User's Guide
Technical Assistance
Commissioner McWalters' Address
Statewide Analysis
School Performance: A Value-Added Perspective
Technical Brief on the Statistical Model
Salt Survey Reports
Infoworks! 1999
Infoworks! 1998

Technical Brief
Table 2. Descriptive Statistics

Dependent Variables: Mathematics

N Minimum Maximum Mean Std. Dev.
Grade 10
Skills		 52 0 67.3 37.83 17.91
Grade 10
Concepts		 52 0 49.8 20.74 13.88
Grade 10
Problem Solving		 52 0 50 15.08 11.84
Grade 8
Skills		 52 19.7 87.9 61.11 17.28
Grade 8
Concepts		 52 0 55.6 20.31 12.70
Grade 8
Problem Solving		 52 1.8 67.7 29.50 14.82
Grade 4
Skills		 186 6.3 95 60.34 18.20
Grade 4
Concepts		 186 0 71.4 29.21 16.68
Grade 4
Problem Solving		 186 0 70 23.21 14.80

Dependent Variables: English/Language Arts

N Minimum Maximum Mean Std. Dev.
Grade 10
Reading
(understanding)		 52 3.7 61.1 30.06 15.01
Grade 10
Reading
(analysis)		 52 0 40.4 15.47 10.53
Grade 10
Writing
(effectiveness)		 52 0 49.8 14.30 9.60
Grade 10
RI Writing		 52 6.9 74.8 35.09 17.39
Grade 8
Reading
(understanding)		 52 15.2 88.6 52.43 17.72
Grade 8
Reading
(analysis)		 52 1.9 55.9 23.96 13.36
Grade 8
Writing
(effectiveness)		 52 9.1 82.5 44.09 16.67
Grade 8
Writing
(conventions)		 52 13 85.7 54 16.89
Grade 4
Reading
(understanding)		 185 20.5 100 83.95 12.70
Grade 4
Reading
(analysis)		 185 7.7 96.6 68.76 16.54
Grade 4
Writing
(effectiveness)		 185 0 85.0 41.75 19.20
Grade 4
Writing
(conventions)		 185 2.60 91.1 46.68 17.24

Independent Variables

N Minimum Maximum Mean Std. Dev.
% students on free/reduced lunch 290 0 100.0 35.16 29.17
% minority students 290 0 100.0 21.66 28.44
Parents' education (below college) 290 0 90.0 26.32 17.62
% students in LEP 290 0 48.4 5.57 10.37
% students in special education program 290 0 43.9 16.29 5.67
Combined school SES 290 1.77 91.7 27.72 23.36

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For further information call the Rhode Island Department of Education
at 401-222-4600 x2231.