Table of Specifications:
Sample Topics for Exams
Sample Table of Specifications
Clinical Chemistry 1 subject – Prelim Exams
|
Topic
|
Identification
|
Multiple Choice
|
Problem Solving
|
Number of Items
|
Percentage
|
|
Intro to Clinical Chemistry
|
2
|
10
|
0
|
12
|
10
|
|
Laboratory Mathematics
|
2
|
14
|
20
|
36
|
30
|
|
Carbohydrates
|
3
|
33
|
0
|
36
|
30
|
|
Lipids
|
3
|
33
|
0
|
36
|
30
|
|
Total No. of Items
|
10
|
90
|
20
|
120
|
100%
|
DECIDE THE NUMBER OF
ITEMS FOR YOUR EXAM, BASED ON THE HOURS AVAILABLE.
1. You assign the percentage according to the
importance of the topic to your subject, or you can also refer to the required
weight of the topic by your school or accrediting institution.
2.
Decide on the total number of items
for the exam depending on the number of hours assigned.
3.
At least 1 minute is given for easy questions
and 3-5 minutes for difficult questions. In case analyses, you may want to
increase the time.
4.
Based on your total items, you now get the number of
items for each topic simply by multiplying the total score with the percentage.
Below is the computation for this Table of Specifications.
How to solve the number of
items for your Table of Specifications.
Introduction to
clinical chemistry = 120 X 0.10 (10%) = 12 items
Laboratory Mathematics
= 120 X 0.30 = 36 items
Carbohydrates = 120 X
0.30 = 36 items
Lipids = 120 X 0.30
=36 items
Total number of
items = 120
Assign now the
specific type of test for the items. As the instructor, you would know what
type of test could effectively test the knowledge of your students with
the different topics. Your Table of Specifications should
reflect which topics are vital to your course.
1.
In this example, the
Introduction to Clinical Chemistry would not use problem solving but only
multiple choice and identification. You can compose 10 items for multiple
choice and 2 items for identification.
2.
Do the same with the rest of the topics.
3.
Make sure your table totals correctly in the
vertical and horizontal columns and rows.
4. The percentage value is not always the same as
the number of items. They are only the same when you have a 100-item
exam.
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