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K. MartinDelaware Science Coalition
October, 2002
Delaware Science DSTP Grade 8 and 11
Spring 2002
K. MartinDelaware Science Coalition
October, 2002
DSTP Facts• 3rd time administered (2000, 2001, 2002)• Measures student progress towards the Delaware
Science Content Standards• Requires students to demonstrate
– Declarative knowledge (what)– Procedural (how)– Schematic knowledge (why)
• Targets the “BIG IDEAS” in science– Structure/function relationships– Energy-matter transformations– Physical/chemical properties– Laws/theories (e.g. conservation of matter, plate tectonics)
K. MartinDelaware Science Coalition
October, 2002
Points• 32 multiple choice items of one point each • 18 short response items of 2 points each• Total of 68 points• Has four sub categories
– Inquiry (11 points or 15% of test)– Physical (19 points or 30% of test)– Earth (16 points or 25% of test)– Life (22 points or 30% of test)
• All 68 points translated into Standards-based scores ranging from 100-500. We call this the MEAN or SCALE score.
K. MartinDelaware Science Coalition
October, 2002
Performance LevelsAll scale scores are then translated into
performance levels.Level/Category
• 1 Well below Standard: Needs significant improvement
• 2 Below Standard: Needs improvement• 3 Meets Standard: Good performance• 4 Exceeds the Standard: Very good
performance• 5 Distinguished: Excellent performance
K. MartinDelaware Science Coalition
October, 2002
Cut Scores
Cut scores determine the level of performance.
335325300282113383253002808
DistinguishedExceedsMeetsBelowGrade
K. MartinDelaware Science Coalition
October, 2002
2001-2002 Scale Score ComparisonStandards-Based Scores, Science DSTP
294 296295 301
100120140160180200220240260280300320340360380400420440460480500
8 11
Grades
Scale
Score
s
2001
2002
Grades 8 and 11 showed slight increases in mean scores
from 2001 to 2002.
K. MartinDelaware Science Coalition
October, 2002
Delaware Grade 8 Science DSTP, Spring 2002 District Scale Scores
100
150
200
250
300
350
400
450
500
0 5 10 15 20 25 30 35
Districts
Mea
n S
cien
ce S
core
District mean scores range closely together from 285 to 302.
K. MartinDelaware Science Coalition
October, 2002
Delaware Grade 11 Science DSTP, Spring 2002 Scale Scores
100
150
200
250
300
350
400
450
500
0 5 10 15 20 25 30 35
Schools
Scal
e Sc
ore
Grade 11 scores ranged from 277 to 327,
including charter schools.
K. MartinDelaware Science Coalition
October, 2002
Percent of Students Meeting or Exceeding the Science Standards 2001-2002
Percent of Students Meeting/Exceeding the Science Standards
0
10
20
30
40
50
60
70
80
90
100
8 11Grade
Perce
nt of
Stude
nts
2001 2002
The percent of students meeting or exceeding the Science Standards at was 44% at grade 8 and 54% at grade 11.
K. MartinDelaware Science Coalition
October, 2002
Delaware Grade 8 Science DSTP, Spring 2002 % of Students Meeting (3,4,5) or Below (1,2) Standard
0102030405060708090
100
State
Appoq
uinimink
Brandyw
ine
Caesa
r Rodn
ey
Cape H
enlopen
Capita
lChri
stina
Colonial
Delmar
Indian R
iver
Lake F
orestLau
relMilfo
rdRed
Clay
Seaford
Smyrna
Woodbri
dge
Districts
Perc
enta
ge o
f Stu
dent
s
Meeting or Exceeding the Standard Below Standard
13 out of 16 districts had more students not meeting the science Standard than those who did.
K. MartinDelaware Science Coalition
October, 2002
Delaware Grade 11 Science DSTP, Spring 2002 % of Students Meeting/Exceeding
and Below the Standard
0102030405060708090
100
State T
otal
Appoq
uinim
ink S
choo
l ...
Brand
ywine
Sch
ool D
ist...
Caesa
r Rod
ney S
choo
l...
Cape H
enlop
en S
choo
l...
Capita
l Sch
ool D
istric
t
Charte
r Sch
ool o
f Wilm
...
Christ
ina S
choo
l Dist
rict
Colonia
l Sch
ool D
istric
t
Delmar
Sch
ool D
istric
t
Indian
Rive
r Sch
ool D
is...
Lake
For
est S
choo
l Dis.
..
Laur
el Sch
ool D
istric
t
Milford
Sch
ool D
istric
t
New C
astle
Cou
nty V
o...
Polytec
h Sch
ool D
istric
t
Red C
lay C
onso
lidate
...
Seafor
d Sch
ool D
istric
t
Smyrna S
choo
l Dist
rict
Susse
x Tec
hnica
l Sch
o..
Woo
dbrid
ge S
choo
l Dis.
..
Districts
Per
cen
t of S
tud
ents
Science % Meets or Exceeds Standard Science % Below Standard
K. MartinDelaware Science Coalition
October, 2002
Special Education
Special Education students are required to take the science DSTP either:
• under regular conditionsOR
• test with accommodationsOR
• participate in the DAPA (Delaware Alternate Portfolio System)
K. MartinDelaware Science Coalition
October, 2002
Limited English Proficient Students
LEP students are required to take the Science DSTP either:
• Under regular conditionsOR
• With accommodationsOR
• Are exempted from all or part of the test
K. MartinDelaware Science Coalition
October, 2002
School Accountability
Scores for ALL students who test, regardless of accommodations, are translated into performance levels. These levels earned by students are used for both student and school accountability.
K. MartinDelaware Science Coalition
October, 2002
Absences, Suspensions, Expulsions
• Students are considered absent IF they were not present for the entire test week and make-up test week.
• Expelled students during both test week and make-up week DO NOT take the DSTP.
• Expelled students in an alternative program are required to take the DSTP.
• Special exemptions are granted for medical or mental conditions, emergencies, accidents, etc…AND for all students who did not complete all parts of the test due to conditions beyond their control during the weeks of testing.
• Invalidations may result because of cheating, disruptive behavior, refusal to test, etc…
K. MartinDelaware Science Coalition
October, 2002
What is a valid score?
A valid score is at least one item completed by the student.
K. MartinDelaware Science Coalition
October, 2002
DisaggregationsData is disaggregated by:• Gender• Race/ethnicity• Free/reduced lunch meal
eligibility• Title I• Disability• English proficiency• Migrant status
K. MartinDelaware Science Coalition
October, 2002
Delaware Grade 8 Science DSTP % of Special Education Students Meeting or
Exceeding the Standard 2001-2002
9.07 8.53
0
10
20
30
40
50
60
70
80
90
100
2001 Grade 8 Special Ed 2002 Grade 8 Special Ed
Years
Perc
ent o
f Stu
dent
s Mee
ting
or
Exce
edin
g th
e Sta
ndar
d
Approximately 90% of special education students at grade 8 are below the Standard in science.
K. MartinDelaware Science Coalition
October, 2002
Delaware Science Grade 11 DSTP% of Special Education Students
Meeting or Exceeding the Standard 2001-2002
7.1611.73
0
10
20
30
40
50
60
70
80
90
100
2001 Grade 11 Special Ed 2002 Grade 11 Special Ed
Years
Perce
ntage
of St
uden
ts Me
eting
or
Exce
eding
the S
tanda
rd
Approximately 88% of special education students are below the science Standard in grade 11.
K. MartinDelaware Science Coalition
October, 2002
Delaware Science Grade 8 DSTP % of Female and Male Students
Meeting or Exceeding the Standard 2001-2002
0
10
20
30
40
50
60
70
80
90
100
2001 Female 2001 Male 2002 Female 2002 Male
Years
Perc
ent o
f Stud
ents
Meeti
ng or
Exce
eding
teh
Stan
dard
Basically, no gender gap is evident from the grade 8 science scores.
K. MartinDelaware Science Coalition
October, 2002
Delaware Science DSTP Grade 11 % of Male and Female Students Meeting or Exceeding the
Standard 2001-2002
0
10
20
30
40
50
60
70
80
90
100
2001 Female 2001 Male 2002 Female 2002 Male
Years
Perce
nt of
Stud
ents
Meeti
ng or
Exce
eding
the
Stan
dard
No gender gap is evident from the science scores at grade 11.
K. MartinDelaware Science Coalition
October, 2002
Grade 8 Science DSTP % of Students Meeting or Exceeding the Standard
by Race/Ethnicity 2001-2002
0
10
20
30
40
50
60
70
80
90
100
2001
Afric
an A
merica
n
2002
Afric
an A
merica
n
2001
Hisp
anic
2002
Hisp
anic
2001
Whit
e20
02 W
hite
2001
Ameri
can I
ndian
2002
Ameri
can I
ndian
2001
Asia
n Ameri
can
2002
Asia
n Ameri
can
Race/Ethnicity
Per
cen
t of S
tud
ents
Mee
ting
or
Exc
eed
ing
the
Sta
nd
ard
Fewer African American students meet or exceed the science Standard at grade 8 than any other race.
K. MartinDelaware Science Coalition
October, 2002
Delaware Grade 11 Science DSTP % of Students Meeting or Exceeding the Standard
by Race/Ethnicity
0
10
20
30
40
50
60
70
80
90
100
2001African
American
2002African
American
2001Hispanic
2002Hispanic
2001 White 2002 White 2001 AsianAmerican
2002 AsianAmerican
Race/Ethnicity
Per
cen
t o
f S
tud
ents
Mee
tin
g o
r E
xcee
din
g
the
Sta
nd
ard
Fewer African American students meet or exceed the standard at grade 11 than any other race.
K. MartinDelaware Science Coalition
October, 2002
Delaware Grade 8 Science DSTP % of Students Meeting or Exceeding the Standard
by Income Level 2001-2002
0
10
20
30
40
50
60
70
80
90
100
2001 Low-Income 2001 Not Low-Income 2002 Low-Income 2002 Not Low-Income
Years
Perce
nt of
Stud
ents
Meeti
ng or
Exce
eding
the
Stan
dard
Low income students scores are less than half of those of the non-low income peers at grade 8.
K. MartinDelaware Science Coalition
October, 2002
Delaware Grade 11 Science DSTP % of Students Meeting or Exceedng the Standard
by Income Level
0
10
20
30
40
50
60
70
80
90
100
2001 Low-Income 2001 Not Low-Income 2002 Low-Income 2002 Not Low-Income
Years
Perce
nt of
Stude
nts M
eeting
or Ex
ceedin
g the
Stan
dard
At grade 11, low income students’ scores are about half of the regular students’ scores.
K. MartinDelaware Science Coalition
October, 2002
Statewide Conclusions• Grade 8 and Grade 11 Mean are very similar.
Grade 8 = 294.9 and Grade 11 = 300.9.
• 2285 less students take the science test in grade 11 than in grade 8.
• Grade 11 showed a 9 percentage point increase in scores from 2001-2002 whereas grade 8 showed a 1 percentage point increase in scores from 2001-2002.
K. MartinDelaware Science Coalition
October, 2002
Statewide Conclusions
• About 90% of special education students do not meet the science standard at grade 8 or 11.
• Male and female scores for grades 8 and 11 are nearly the same. There is no appreciable gender difference in scores.
K. MartinDelaware Science Coalition
October, 2002
Statewide Conclusion
• Far fewer African American students meet or exceed the standard than any other race/ethnicity at both grades 8 and 11.
• Non-low income students are scoring double what the low income students are scoring at both grades 8 and 11.