Sample Statistical Report
Examination Services
University of Nebraska - Lincoln
SCALE, Version 5.0
Form: d1f
Course/Title: Ex Ser 109
Semester/Version: Summer 2007
Date: 14 August 2007
Instructor/Sponsor: Knight
Test Number/Other: Exam 1 Version A
Time: 3:04PM
STATISTICS
Number of Subjects =
High Score =
Test Mean =
Standard Deviation =
Coefficient Alpha =
Points Per Question =
10
10
6.60
2.94
0.83
1.00
Number of Questions =
Low Score =
Test Median =
Variance =
Standard Error =
10
1
7.00
8.64
1.20
FREQUENCIES
Score
Correct
%
10.0
9.0
8.0
7.0
6.0
5.0
2.0
1.0
100.00
90.00
80.00
70.00
60.00
50.00
20.00
10.00
Z-Score
1.16
0.82
0.48
0.14
-0.20
-0.54
-1.56
-1.91
Subjects
1
3
1
1
1
1
1
1
Group
%
10.0
30.0
10.0
10.0
10.0
10.0
10.0
10.0
Cumulative:
"N"
%'s
10
9
6
5
4
3
2
1
100.0
90.0
60.0
50.0
40.0
30.0
20.0
10.0
HISTOGRAM
Score
10.0
9.0
8.0
7.0
6.0
5.0
2.0
1.0
Frequency: [Approx.] 20.00 equal signs represent one subject.
====================
============================================================
====================
====================
====================
====================
+
====================
====================
CHOICE DISTRIBUTION
Question/Answer
#
1/a
%'s
a
b
6
75.0
1
12.5
Responses
c
d
0
0.0
1
12.5
e
Omits
0
0.0
2
Subtotal
8
ITEM ANALYSIS
Difficulty:
Discrimination:
Correlation:
Question/Answer
#
a
b
Easy > 0.80
Good > 0.40
High > 0.30
c
d
Difficult < 0.20
Poor < 0.00
Low < 0.00
e
6
1
0
1
0
75.0 12.5 0.0 12.5 0.0
-------------------------hi +
4
0
0
0
0 +
mid +
1
0
0
1
0 +
lo +
1
1
0
0
0 +
==========================
means +
7.5 1.0 0.0 7.0 0.0+
-------------------------Difficulty =
0.60 Discrimination =
Omits Subtotal
1/a
%'s
0.47
Correlation =
This question is a good discriminator.
It has high correlation.
ITEMS MISSED BY STUDENTS
Name
I.D. Number
Total and Sub Scores
Responses ( "." means a correct answer )
Total score =
KEY = abcde dcbab
1
WILSON BRENT
2
HENDERSON HARRY
3
CONTRARY MARY Q
10.0
..... .....
8.0
...c .....
5.0
*.... eecb.
10.0
2
8
1
0
1
%'s
80.0
50.0
33.3
0.38
STUDENT EXAM SCORES BY NAME
Name
CONTRARY MARY Q
DOSTOEVSKY FYODOR
GUMP FORREST
HENDERSON HARRY
HOOD ROBIN
JOBS STEVE
KRABAPPEL EDNA
MANILLA SAL
MCFLY MARTY
WILSON BRENT
I.D. Number Total and Subscores
5.0
2.0
9.0
8.0
9.0
1.0
7.0
9.0
6.0
10.0
RUTH'S CHART OF OMITTED RESPONSES AND CINDY'S STAR CHART
Name
I.D. Number
Score
Question # / Correct Answer
2) HENDERSON HARRY
8.0
1a
3) CONTRARY MARY Q
5.0
1a
7) MCFLY MARTY
6.0
6d