In most population-based studies, the questionnaire is the only instrument that connects the researcher with the respondent. If this tool is not valid, then the findings will not be useful at all. The task of constructing, testing and validating a questionnaire is not as easy as it may look.
In questionnaire design, the researcher defines a concept and tries to operationalize it by asking several questions, called items. Then the question arises: are the items measuring what they are intended to? To answer this, the questionnaire must undergo a rigorous process of validation.
In the pilot test stage, the Cronbach’s Alpha could be used to indicate internal consistency. A test-retest could be performed to test for repeatability. Factor analysis may show the underlying structures. A confirmatory factor analysis must be used to confirm whether the items are adequately measuring the concept. Further, the questionnaire must be able to withstand the factorial invariance test procedures.
Outline of the Workshop
- Concept and Conceptualization
- Questionnaire Development
- Types of Validity
- Internal Consistency
- Test-Retest Reliability
- Exploratory factor analysis
- Confirmatory factor analysis
- Factorial Invariance
Dr. Karuthan Chinna has a Master Degree in Applied Statistics from the Michigan State University, USA and a PhD in Multivariate Quality Control from the Multimedia University, Malaysia. Dr. Karuthan Chinna has been teaching statistics for 35 years and is also very active in research and consulting. He has published two books; one on Biostatics and the other one on SPSS. He has been a statistical consultant for several projects at the Ministry of Health and other institutions.
UM Student : RM240
UM Staff : RM350
Others : RM500
For further information, please contact us:
Ms. Devi Peramalah / Ms. Ekin
Tel : +603-79673797 Fax : +603-79674975
For information on registering for the workshop, kindly visit the JCUM website.
You are welcome to participate in this workshop!