Research

1. CLASSIFICATION
OF
DATA

2. What is classification of data?
Data classification is the
process of organizing
data into categories for
its most effective and
efficient use.

3. A well- planned data
classification system makes
essential data easy to find
and retrieve.

4. 3 - 4
Types of Data
Recognizing and understanding the
different data types is an important
component of proper data use and
interpretation.
Reviewed 15 April 2005 /MODULE 2

5. 3 - 5
Data are often discussed in terms of
variables, where a variable is:
Any characteristic that varies from
one member of a population to
another.
A simple example is height in
centimeters, which varies from
person to person.
Data and Variables

6. TYPES OF DATA
QUALITATIVE DATA
QUANTITATIVE OR INTERVAL
DATA(measurements)
CHRONOLOGICAL BASE
TEMPORAL BASE

7. 1. QUALITATIVE DATA
A. NOMINAL, ATTRIBUTE OR CATEGORICAL DATA:
Examples:
1. Gender
2. Religion
3.Countries
4. Civil Status

8. 1.QUALITATIVE DATA
B. Ordinal or Ranked Data: one value is greater
or less than another, but the magnitude of the
difference is unknown.
EXAMPLES:
1. Student Performance(outstanding, very
satisfactory, satisfactory, unsatisfactory)
2. Income (10, 000.00- 15, 000.00, 20, 000.00- 50, 000.00)

9. II. QUANTITATIVE OR INTERVAL DATA
(measurements)
A. Discrete or Meristic Data (whole number
counts)
EXAMPLES:
1. Number of students in the classroom
2. Number of pets at home
3. Number of children in family

10.  B. Continuous Measurements (rational numbers, limited by
the accuracy of your measurements)
 EXAMPLES:
1. Height
2. Weight
3. Grades

11. III. Chronological base
Data are classified by geographical regions or
locations, like states, provinces, cities,
countries.

12. IV. Temporal base
Data are classified or arranged by their time
occurrence, such as years, months, weeks,
days, etc.,

13. Types of Classification
One-way Classification
Two-way Classification
Multi-way Classification

14. I. One-way Classification
Data keeping are viewed by single characteristics
Example:
population of the world are classified by religion

15. II. Two-way Classification
We consider two characteristics at a time
Example:
population of the world are classified according to
religion and sex

16. III. Multi-way Classification
We consider more than two characteristics at a
time
Example:
population of the world are classified according to
religion, sex and literacy