During the 2013-2014 school year, Peer Power continued to demonstrate its positive impact on
the academic performance of our tutors and scholars. Data from the Tennessee Value-Added
Assessment System (TVAAS) show that students enrolled in the program made significant advances
over their predicted performance as well as the performance of their peers. In both Biology and
English II, Peer Power students had results nine percentile points higher than expected. In Algebra,
Peer Power students were predicted to perform in the 23rd percentile, but their observed results
were in the 50th percentile for Tennessee public school students, while other Shelby County Schools
students were in the 34th. On average, the Peer Power students performed 14 percentile points higher than predicted,
while their SCS counterparts demonstrated no improvement. Because many of them attend lower-performing schools, the
Peer Power students were expected to show lower results than SCS students in general, but ultimately, they surpassed all
predictions and ended up ten percentile points higher than students not in the program.
2013-2014 bIology tvAAs dAtA
Avg. Predicted Percentile vs. Avg. Observed Percentile
Before Peer Power, we
(percentiles based on all Tennessee public school students)
were at 68% passing on the
30
Gateway Exam. With Peer
28
28
Power, we went from a 68%
26
passing rate to 84% in one
24
24
year. The next year, we went
SCS -2 Pe
rcentile
20
from 88% to 92%.
18
19
16
Dr. Vincent Hunter,
Whitehaven High School
14
Predicted Percentile
Observed Percentile
10325 Students
SCS* ex PEER POWER
*SCS = All Shelby County Schools
2013-2014 AlgebrA I tvAAs dAtA
Avg. Predicted Percentile vs. Avg. Observed Percentile
(percentiles based on all Tennessee public school students)
55
50
50
45
er
40
er
Pe
30
31
25
entile
SCS +3 Perc
w
Po
e
7P
e
til
en
rc
35
+2
34
23
20
15
10
Predicted Percentile
Observed Percentile
10986 Students
SCS* ex PEER POWER
*SCS = All Shelby County Schools
we
Po
ile
nt
rce
Pe
22
22
from 84% to 88%, and then
er
Pe
9
r+
81 Students
PEER POWER
79 Students
PEER POWER
2013-2014 englIsh II tvAAs dAtA
Avg. Predicted Percentile vs. Avg. Observed Percentile
(percentiles based on all Tennessee public school students)
38
36
36
34
er
Pe
32
r
we
Po
+9
30
n
rce
Pe
29
tile
SCS +1 Percen
28
28
tile
27
26
24
22
20
Predicted Percentile
Observed Percentile
10332 Students
SCS* ex PEER POWER
117 Students
PEER POWER
*SCS = All Shelby County Schools
2013-2014 eAst hIgh percentIle weIghted AverAge of
AlgebrA I, englIsh II, And bIology tvAAs dAtA
Avg. Predicted Percentile vs. Avg. Observed Percentile
(percentiles based on all Tennessee public school students)
40
38
38
36
ile
34
32
r
ee
4
+1
rc
Pe
w
Po
P
30
28
er
t
en
28
SCS No Change
28
26
24
24
22
20
Observed Percentile
Predicted Percentile
10548 Students Avg
SCS* ex PEER POWER
*SCS = All Shelby County Schools
93 Students Avg
PEER POWER