Page 8 - tajccHpm&if;tif;ynmtwGuf R
P. 8
Examples of Data Sources
Primary Sources Secondary Sources
(a) Survey - Published journals
- Personal interview - Published books
- Telephone - Government office
- Mail - Trade, professional and
- Internet business
(b) Observation - Private business firm
- Personal observation - Advertising media
- Mechanical observation - University research
(c) Experimental - Private research firm
- Laboratory - Data centre
- Field experiment
15
Qualitative vs Quantitative
Data can be qualitative or quantitative.
• Qualitative data is descriptive information (it
describes something)
• Quantitative data, is numerical information
(numbers).
16
