ELI Placement Test Statistics

 

Every semester ELI testing specialists run statistics for validity and reliability.

Below are the statistics from recent semesters:

 

FALL 2006 ELIPT Administration
ALT
DICT
RCT (with pilot)
RCT (without pilot)
CLZ
A
B
A
B
N 197 198 113 93 113 93 193
K 35 50 50 50 30 30 25
Mean 19.65 26.78 30.52 27.27 18.77 16.76 17.44
Median 19 25 31.33 28.63 18.56 17.4 19
S 5.06 11.09 8.44 9.57 6.09 6.52 5.14
Max. 31 50 49 44 30 28 25
Min. 9 6 11 9 4 4 0
Range 23 45 39 36 27 25 26
Reliability* 0.72 0.92 0.87 0.9 0.87 0.9 0.83
SEM 2.68 3.14 3.04 3.03 2.2 2.06 2.12
*Reliability estimates are K-R20 for ALT and RCT, K-R21 for DICT and CLZ

 

SPRING 2007 ELIPT Administration
ALT
DICT
RCT (with pilot)
RCT (without pilot)
CLZ
N 97 98 106 106 104
K 35 50 50 29 25
Mean 18.98 24.33 25.87 15.3 15.15
Median 18 22 25 15 15
SD 5.31 11.39 8.38 5.62 5.51
Max. 32 49 46 29 25
Min. 9 6 7 5 3
Range 24 44 40 25 23
KR-20 0.76 0.94 0.86 0.82 0.87
KR-21   0.92     0.84
SEM* 2.61 2.65 3.14 2.39 1.98
*SEM from KR20
*Reliability estimates are KR20 for ALT and RCT

 

FALL 2007 ELIPT Administration
ALT
DICT
RCT (with pilot)
RCT (without pilot)
CLZ
A
B
A
B
N 201 204 123 78 123 78 204
K 35 50 50 50 29 29 25
Mean 20.19 28.38 32.11 30.86 18.69 18.26 17.91
Median 21 27.5 33 32 19 19 19
SD 5.32 11.14 7.57 8.75 5.33 5.58 4.95
Max. 31 50 45 46 28 27 25
Min. 5 7 9 8 4 6 3
Range 26 43 36 38 24 21 22
KR-20 0.76   0.84 0.88 0.81 0.83  
KR-21 0.71 0.92 0.82 0.86 0.79 0.81 0.83
SEM 2.63* 3.16** 3.02* 3.02* 2.30* 2.29* 2.07**
*SEM from KR20
** SEM from KR21

 

SPRING 2008 ELIPT Administration
 
ALT
DICT
RCT (with pilot)
RCT (without pilot)
CLZ
N 65 65 66 66 66
K 35 50 50 29 25
Mean 19.88 28.17 28.38 16.53 16.27
Median 20 27 30.5 16 17
SD 5.67 11.42 8.82 5.9 5.46
Max. 34 50 46 27 25
Min. 8 8 12 6 3
Range 26 42 34 21 22
KR-20 0.79 0.94 0.88 0.84 0.87
KR-21 0.76 0.92 0.86 0.83 0.84
SEM 2.62 2.7 3.09 2.35 1.95

 

SPRING 2009 ELIPT Administration
 
ALT
DICT
RCT (with pilot)
RCT (without pilot)
CLZ
N
93
98
96
96
99
K
35
50
50
29
25
Mean
19.96
27.42
29.24
17.79
16.26
Median
20
26
31
19
16
SD
5.09
10.94
8.46
6.05
6.13
Max.
32
50
44
28
25
Min.
3
9
6
5
3
Range
29
41
38
23
22
KR-20
0.73
0.87
0.86
KR-21
0.69
0.91
0.85
0.84
0.88
SEM
 2.66*
   3.28**
3.07*
2.28*
2.12**
*SEM from KR20
** SEM from KR21