What about Growth? Evidence from
Iowa’s 2009 Growth Data
Tom.deeter@iowa.gov
Context
• NCLB Growth: Are non-proficient students
making progress toward proficiency?
• What about the students who are already
proficient? Does their growth continue?
Methodology
• Test used: Iowa Tests of Basic Skills.
• Any student meeting growth criteria was
designated such during AYP data analysis.
• Students were expected to improve one
achievement level to be counted as having met
growth.
• NCLB – only non-proficient students
• Current analysis– any student meeting growth
(no Alternate Assessment).
Achievement Levels
• Level 1 – Weak. < 9 PR
• Level 2 – Lo Marginal. 10 to 29 (+/- 2)
• Level 3 – Hi Marginal. 30 (+/- 2) to 40
• Level 4 – Moderate. 41 to 75
• Level 5 – Skilled. 76 to 89
• Level 6 – Accomplished. 90 to 94
• Level 7 – Distinguished. 95 to 99
More Methods
• Matched Data
– Grades 3, 4, 5, 6, 7 from 2008
– Grades 4, 5, 6, 7, 8 from 2009
• 155,000 students; 31,000 per grade
• Vertically aligned scale scores. Vertically articulated
content standards.
Findings from earlier,
grade-by-grade analysis
• Students at all levels are improving.
• Students with the most room to grow grow the
most.
• Teachers are addressing needs of learners at all
levels of the achievement spectrum, and in
reading and mathematics.
Math Results
2009 Achievement Level (& PR range)
Achievement
Grade Level <9 10 to 29(2) 30(2) to 40 41 to 75 76 to 89 90 to 94 95 to 99
2 (10 to 29)
3 (30 to 40)
4 (41 to 75)
5 (76 to 89)
6 (90 to 94)
7 (95 to 99)
Total
Math Results
2009 Achievement Level (& PR range)
Achievement
Grade Level <9 10 to 29(2) 30(2) to 40 41 to 75 76 to 89 90 to 94 95 to 99
2 (10 to 29)
3 (30 to 40)
4 (41 to 75)
5 (76 to 89)
6 (90 to 94)
7 (95 to 99)
Total
Interpretation
• Blue Cells – percent of students who were not
proficient in 2008 and proficient in 2009
• Orange and Blue Cells – percent of students
who were not proficient in 2008 and improved
in 2009.
Math Results
Group Not Proficient 08 Not Proficient 08
Proficient 09 Improved 09
All Students 31.0 46.6
Low SES 26.1 43.0
IEP 17.2 36.4
ELL 23.5 42.1
African-American 19.3 37.5
Asian 34.5 32.5
Hispanic 25.8 43.6
Native American 26.9 41.9
White 33.7 48.5
Reading Results
Group Not Proficient 08 Not Proficient 08
Proficient 09 Improved 09
All Students 33.1 50.8
Low SES 27.2 46.4
IEP 16.8 39.1
ELL 21.7 43.5
African-American 21.1 41.3
Asian 34.5 51.6
Hispanic 24.3 44.3
Native American 27.2 47.4
White 36.1 53.1
Math Results
2009 Achievement Level (& PR range)
Achievement
Grade Level <9 10 to 29(2) 30(2) to 40 41 to 75 76 to 89 90 to 94 95 to 99
2 (10 to 29)
3 (30 to 40)
4 (41 to 75)
5 (76 to 89)
6 (90 to 94)
7 (95 to 99)
Total
Interpretation
• Green Cells – percent of students who were
improved from 2008 to 2009.
• Gray Cells – percent of students who stayed at
the same level from 2008 to 2009.
• Yellow Cells – percent of students who went
down levels from 2008 to 2009.
Math Results
Group % Improved % Same % Declined
All Students 30.0 45.2 24.8
Low SES 27.7 46.2 26.1
IEP 27.7 44.5 27.8
ELL 28.5 15.9 55.6
African-American 25.3 46.2 28.5
Asian 53.6 5.0 41.4
Hispanic 27.4 28.6 44.0
Native American 25.6 30.1 44.3
White 30.5 45.0 24.5
Reading Results
Group % Improved % Same % Declined
All Students 33.3 42.3 24.4
Low SES 31.0 43.6 25.4
IEP 31.6 42.7 25.7
ELL 31.3 45.0 23.7
African-American 28.6 9.4 62.0
Asian 33.1 43.6 23.3
Hispanic 29.4 45.4 25.2
Native American 28.6 29.0 42.4
White 34.0 41.8 24.2
Math Results
Achievement
Grade Level <9 10 to 29(2) 30(2) to 40 41 to 75 76 to 89 90 to 94 95 to 99
2 (10 to 29)
3 (30 to 40)
4 (41 to 75)
5 (76 to 89)
6 (90 to 94)
7 (95 to 99)
Total
Interpretation
• Green Cells – percent of students who stayed
at the same level or improved from 2008 to
• Yellow Cells – percent of students who went
down levels from 2008 to 2009.
Math Results
Group % Same or
Improved
All Students 75.2
Low SES 73.9
IEP 72.2
ELL 44.4
African-American 71.5
Asian 58.6
Hispanic 56
Native American 55.7
White 75.5
Reading Results
Group % Same or
Improved
All Students 75.6
Low SES 74.6
IEP 74.3
ELL 76.3
African-American 38.0
Asian 76.7
Hispanic 74.8
Native American 57.6
White 75.8
Is Iowa’s Growth Model Working?
Schools/Districts Meeting AYP
– 128 schools (8.6%)
– 77 districts (21.1%)
– 65 schools (4.4%)
– 9 districts (2.4%)
– 69 schools (4.8%)
– 35 districts (9.7%)
Summary
• Students in all subgroups are improving; SWD
lagging behind in proficiency.
• Need to examine disparities among some
subgroups, instructionally and culturally, to
understand the context surrounding their
achievement challenges.
• Need to dig deeper to examine group
differences in specific districts.
Math Counts
Group Number of % of All
Students
All Students 155682
Low SES 53869 34.6
IEP 20720 13.3
ELL 6113 3.9
African-American 8591 5.5
Asian 3554 2.3
Hispanic 9995 6.4
Native American 1362 0.9
White 132718 85.2
Reading Counts
Group Number of % of All
Students
All Students 156108
Low SES 54099 34.7
IEP 20808 13.3
ELL 6153 3.9
African-American 8485 5.4
Asian 3330 2.1
Hispanic 10140 6.5
Native American 1294 0.8
White 133086 85.3
About this copy
What about Growth? Evidence from — CCSSO, June 2010.
This is an image-based copy of the original PowerPoint slides; builds and animations are flattened.