An analysis of the Quantitative and Qualitative approaches and collection of data in terms of transport facility design was conducted for the "Transport Facility Design" module during semester 3 of the bachelors (Hons) degree program in Transport and Logistics Management at University of Moratuwa.

1. RESEARCH METHODS
QUANTITATIVE & QUALITATIVE APPROACH AND
COLLECTION OF DATA
Hashan Rahubaddha

2. “A SINGLE PERSONAL
EXPERIENCE DOES
NOT NECESSARILY
GENERALIZE TO ALL,
OR EVEN MOST
OTHERS.”

3. SHOULD PROVIDE EVIDENCE REGARDING
WHETHER OR NOT USE THE CAR SEATING
FOR THE DRIVER SAFETY?

4. WHO, HOW AND WHERE
SHOULD THESE EVIDENCE BE OBTAINED?

5. HUMAN FACTORS DESIGNER
WHO?

6. HOW?
SCIENTIFIC RESEARCHES
“Describe, understand and predict
relationship between variables.”

7. EXPERIMENTAL RESEARCH
WHAT?
This is an experiment where the researcher manipulates one
variable, and control/randomizes the rest of the variables. It
has a control group, the subjects have been randomly
assigned between the groups.

8. 5 STEPS CONDUCTING AN
EXPERIMETNT
1. Define problem & hypotheses
2. Specify the experimental plan
3. Conduct the study
4. Analyze the data
5. Draw conclusions

9. EXPERIMENTAL DESIGNS
1. TWO GROUP DESGIN
2. MULTIPLE GROUP DESIGN

10. EXPERIMENTAL DESIGNS
3. FACTORIAL DESIGN
4. BETWEEN-SUBJECT DESIGN

11. HOW THE EXPERIMENTAL RESEARCHES ARE
CONDUCTED IN A VIRTUAL ENVIRONMENT

12. DESCRIPTIVE RESEARCH
WHAT?
Descriptive research methods are pretty much as they sound they
describe situations. They do not make accurate predictions, and they
do not determine cause and effect.
THREE MAIN TYPES
1. observational methods
2. case-study methods
3. survey methods.

13. OBSERVATIONAL METHODS
“With the observational method, human behavior is
closely observed. There are two main categories of
the observational method naturalistic observation
and laboratory observation.”

14. SURVEY & QUESTIONNARIES

16. HOW SURVEY DATA HELPS TO BUILD A
BETTER SEAT FOR EVERYONE

17. HOW SURVEY DATA HELPS TO BUILD A
BETTER VEHICLE SPACE FOR EVERYONE

18. CASE STUDY METHODS
Ergonomists must sometimes determine
the overall functioning of a system,
specially with respect to safety.
Evaluate the occurrences of the
incidences, accidents or both

19. ETHICAL ISSUES
• Protection of participants from mental or
physical harm
• The right of participants to privacy with
respect to their behavior.
• The assurance that participation in research
is completely voluntary.
• The right of participants to be informed
before hand about the nature of the
experimental procedure.

20. ANY
QUESTIONS?

21. THANK YOU
“ERGONOMICS WILL MAKE YOUR LIFE MORE COMFORTABLE & PRODUCTIVE”