Data Collection and Analysis

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Transcript Data Collection and Analysis

Math Success Project:
Using Data to Improve
Student Achievement in
College-Level Mathematics
Ron Henry, Georgia State University
Danette Gerald, The Education Trust
Background and History of
Mathematics Success Project
03/17/08
2
Nine States in Math Success
 NASH/Education Trust
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03/17/08
State University System of Florida
University System of Georgia
University of Hawaii System
Purdue University (Indiana)
Kentucky Council on Postsecondary Ed.
University of Louisiana System
Mississippi Institutions of Higher Learning
Nevada System of Higher Education
State University of New York (SUNY)
3
Research Question
 What factors/strategies increase success of
students in college mathematics courses?
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03/17/08
Success definition – number of starters who
complete the course with a least a grade of C [or P
(if P/F) or S (if S/U)]
For a predictor, success definition – 75% chance of
at least a grade of C
4
Core Analyses
 Student retention/success in each course
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% of starters successful (ABC; P; S)
% of starters with W
% of completers successful (ABC; P; S)
 Student preparation or placement in a course
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03/17/08
ACT/SAT data and success
HS courses and success
Correlation of placement tests
5
Core Analyses
 Student retention/success in each course
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03/17/08
For fall 2005 and spring 2006
By course; remedial; terminal math; college
algebra; pre-calculus; calculus
By sector [2-year; comprehensive; research]
By race/ethnicity
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Developmental math:
Percent success starters
90
80
70
60
50
40
30
State/4-yr
State/2-yr
20
10
0
03/17/08
7
College Algebra:
Percent success starters
80
70
60
50
40
30
State/4-yr
State/2-yr
20
10
0
03/17/08
8
Average Success by Race
80
70
60
50
40
30
20
10
0
03/17/08
Black
White
Hispanic
Asian
9
Core Analysis I: Conclusions
 Wide
range of success
Across
the various Systems and sectors
Within the same System and sector
Among sections within the same
institution
Across ethnicities – significant gaps
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03/17/08
Some institutions have much higher
success rates => Let’s learn from them
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Core Analysis II: % Freshmen
taking math courses
 Range: 41.7% - 85.9% [Median 70.2%]
 Surprised that a large percentage of
freshmen do not take any math courses
in their first year
 => Policy implication: Should all
freshmen be required to attempt math
course in their first year?
03/17/08
11
First math course impact on
returning students: Developmental
Math
90
80
70
60
50
40
30
4-yr return
4-yr success
2-yr return
2-yr success
20
10
0
03/17/08
12
First math course impact on
returning students: College
Algebra
90
80
70
60
50
40
30
4-yr return
4-yr success
2-yr return
2-yr success
20
10
0
03/17/08
13
First math course impact on
returning students: Conclusions
 Many students return who have not been
successful in their first-year math courses
 => Reinforces policy implication of
requiring students to take math in their
first year
03/17/08
14
High School Preparation
 How can we work with [high] schools to help more
students be successful in K-12 mathematics so that they
are prepared for non-remedial mathematics college
courses, i.e. test out of Elementary Algebra
[Developmental/remedial math]?
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03/17/08
What percentage of your First Year students completed high
school taking less than Algebra II?
What percentage completed at least Algebra II?
What percentage completed more than Algebra II?
How does that preparation correlate with college mathematics
readiness?
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HS math courses taken in 12th grade
by entering college freshmen
# students
< Algebra I
Algebra I
Algebra II
Other int. math
Pre-calc
Calculus
AP calculus
IB math
Other adv math
No 12th math
03/17/08
% students
316
3.7%
73
426
1862
0.9%
5.0%
22.0%
295
729
558
31
3.5%
8.6%
6.6%
0.4%
3151
1020
37.2%
12.1%
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HS math & College Success %
100
90
80
Devel.
Terminal
Coll. Alg.
Pre-calc
70
60
50
40
30
1
03/17/08
2
3
4
5
6
7
8
9
10
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Conclusions
 Regardless of HS math preparation, students
placed in remedial math have low probability
of success
 Preparation in HS matters, however just
looking at the course taken in 12th grade is not
sufficient for analysis
 => Should ask the question: “ What is the
highest level mathematics course in HS in
which the student was successful?”
03/17/08
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Core Analyses
 Placement exams and success in course
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Predictability of ACT/SAT scores and success
 Pre-requisite course and success in next
course
02/13/07
03/17/08
19
ACT Math benchmark
 ACT Math benchmark for success in
College Algebra is 22
 Where success is defined as a 50%
probability of obtaining a grade of B or
better
 Used logistic regression model
03/17/08
20
ACT & % Success (ABC)
100
90
80
Int. Alg.
Coll. Alg.
Pre-calc
Calc.
70
60
50
40
30
15
03/17/08
20
25
30
35
21
SAT & % Success (ABC)
100
90
Devel.
Terminal
Coll. Alg.
Pre-calc
Pre-calc+
Calculus
80
70
60
50
40
30
320
03/17/08
420
520
620
720
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SAT Math and course success
Course
03/17/08
Correlation SAT Math
Developmental/
Remedial Math
Terminal Math
0.09
College Algebra
0.26
Pre-calculus
0.29
0.29
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Correlation coefficients
03/17/08
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ACT Math and course success
Course
03/17/08
Correlation ACT Math
Developmental/
Remedial Math
Terminal Math
0.14
College Algebra
0.29
Pre-calculus
0.37
0.31
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Conclusion
 ACT Math appears to be a better predictor
of success than SAT Quantitative, but the
correlation is fairly weak
02/13/07
03/17/08
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Placement
 If many students who test into a mathematics course are
not being successful in this course, how do we change
the screening test? Are there particular topics in which
many students are struggling? Are there student
characteristics that correlate with success?
 COMPASS 36 < Alge < 50 -> 79% ABC college algebra
 COMPASS 30 < Trig < 45 -> 64% ABC pre-calculus
 COMPASS Trig > 45 -> 79% ABC calculus I
02/13/07
03/17/08
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Placement
 If a student passes your prerequisite
mathematics course with a C or better, what
should be a goal for success in their current
mathematics course? What is the success of
students in subsequent mathematics courses as
a function of their grade in the first mathematics
course?
 ABC college algebra -> 59% ABC pre-calculus
 ABC pre-calculus -> 54% ABC calculus
02/13/07
03/17/08
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Definitions and Examples of Developmental Course Levels
Definition
Course Examples
Level 0
Remedial
There exist no pre-requisites to enter the
course and the course is designed to teach the
necessary skills to be successful in basic level
courses and beyond.
World of numbers
Math Fundamentals
Arithmetic
Level 1
Basic
There may be a pre-requisite to join the course
and the course is designed at a basic skills
level aiding the student to master the basic
skills needed to be successful in the advanced
level courses.
Intro Elementary Algebra
Basic Elementary Algebra
Level 2
Intermediate
There exists a pre-requisite to enroll in the
course and the course is beyond the basic
understanding of the core concepts. Usually the
course itself is indicated with the title of
intermediate. However, the course does not
provide transfer credit to either the UC or CSU
systems so is not at the advanced transfer
level.
Geometry
Intermediate Algebra
Level 3
Advanced/Transfer
There exists a pre-requisite to enroll in this
class and the class is designed to teach
concepts at the advanced level. Because of
their nature, classes at this level are deemed
transferable to the UC and CSU system.
Trigonometry,
College Algebra,
Pre-calculus
Calculus
Diff. Equations,
Level and Label
03/17/08
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Math View III
Attempt 0
Pass 0
Attempt 1
Pass 1
Attempt 2
Pass 2
Attempt 3
Pass 3
Level 0
607
490
(80.7%)
396
(65.2%)
313
(51.6%)
[79.1%]
230
(37.9%)
185
(30.8%)
[81.3%]
134
(22.1%)
105
(17.3%)
[78.2%]
Level 1
--
--
349
281
(80.5%)
220
(63.0%)
173
(49.6%)
[78.6%]
137
(39.3%)
112
(32. 1%)
[81.8%]
Level 2
--
--
--
--
137
110
(80.3%)
96
(70.1%)
81
(59.1%)
[84.4%]
Level 3
--
--
--
--
--
--
64
52
(81.3%)
03/17/08
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Interventions
 Supplemental Instruction (SI)
 Course Redesign*
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Emporium Model (Virginia Tech)
Fully Online Model (Iowa State)
Replacement Model (U of Alabama)
Supplemental Model (Carnegie Mellon)
Buffet Model (Mohave CC)
*Twigg, C. A. (2003). “Improving Learning & Reducing Costs: Redesigning Large-Enrollment Courses.” Educause Review 38(5): 28-36.
03/17/08
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Interventions
 Course Redesign
 Replacement Model
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03/17/08
U of Alabama; LSU; U of Idaho
Recommend 1 hour classroom + 3 hours in math lab
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Persistence
 What is the retention and graduation success of
your mathematics under-prepared students?
 How many students who have to repeat their
first mathematics course do not enroll for their
second year?
 Are under-prepared students when placed in
credit-bearing math courses instead of
developmental/remedial courses experiencing
success?
02/13/07
03/17/08
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Conclusions
 Large number of remedial students are not
successful
 Non-remedial students are also not particularly
successful, even in Calculus
 => Need to examine what we mean by
readiness for College Algebra or Calculus OR
“What are the standards for entrance and exit
from a particular mathematics course?”
02/13/07
03/17/08
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Policy Ideas
 Students can drop and re-enroll at will.
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Can we at least ask them why??
 Students allow long time intervals between steps.
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Can we encourage them to be continuously enrolled?
 Students do not understand the relationship and
importance of math.
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How can we stress the importance of specific courses?
 Students fear math
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Can we de-mystify it?
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Non-graded
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Applied
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Learning communities
03/17/08
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Data to monitor
 Student retention/success in each
course
 % of starters successful
 % of starters who withdraw
 Student success in subsequent math
course
 Student success if placed in course
 Variations in student success across
sections of same course
 Gaps in success for various ethnicities
03/17/08
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Mathematics Success
Project:
Data Collection and
Analysis
Ronald J Henry
Georgia State University
03/17/08
37
Community College  University
Transfer Rates
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Difficult to get ACCURATE information
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California picture
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No national data
About 40% of first-time students in the California community
colleges are not seeking a degree or certificate, but are
pursuing basic skills, job skills, or personal enrichment.
Of the 60% who are seeking a degree or certificate, only about
1/4 succeed in transferring to a university and/or earning an
associate’s degree or a certificate within six years.
Dr. Linda Serra Hagedor (University of Florida)
Dr. Alberto Cabrera (University of Maryland)
Shulock, N. & Moore, C. (2007) Rules of the Game: How State Policy Creates Barriers
to Degree Completion and Impedes Student Success in the California
Community College
03/17/08
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