Survey Vignesh (1) - lirneasia.netlirneasia.net/wp-content/uploads/2014/09/Survey_Vignesh-1.pdf ·...
Transcript of Survey Vignesh (1) - lirneasia.netlirneasia.net/wp-content/uploads/2014/09/Survey_Vignesh-1.pdf ·...
Survey
P. Vigneswara Ilavarasanhttp://web.iitd.ac.in/~vignes
Vignesh
Agenda
• Why?
• Survey – Types, Selection
• Tool - Questionnaire
• Selection / Sampling
• Management
– Field interviewers
Vignesh 2
Why?
• Descriptive research
– Not exploratory – Non use of toilets in Ghana
• Structured data collection
• Fixed (more or less) responses
• Supports ‘positivistic’ romance• Supports ‘positivistic’ romance
– primary data & NUMBERS!
• Uses a questionnaire
– Amenable to cross-checking
Vignesh 3
Types
Survey Methods
Telephone Int.Personal
Interviewing
In-Home /
Mail Interviewing
Ele. Interviewing
Traditional
Computer assisted
In-Home / Work
Mall Intercept
Computer Assisted
Mail Panel
Internet
Vignesh 4
Selection?
Diverse &
Flexible
Que
Sample
Control
Response
Rate
Control
over data
collection
Environ.
Speed
Cost
Anonymity
of R
Getting
sensitive
info
Physical
Stimuli
Quantity
of Data
Rate
Control of
field
force
Interviewer
Bias
Cost
Social
Desirability
Incidence
rate R. control
Vignesh 5
Tool - Questionnaire
• Most used & abused
• What I would like to have ≠ Respondent likes to share
• Each pen point � research question
• Need for pilot study• Need for pilot study
• Bad design / format – including the look
• Avoid double barrelled
• Clarity for Respondent & her ability to say
• Ordinary words
– Concepts cannot measure concepts
Vignesh 6
Que Exercise
Vignesh 7
Sampling
Non-probability Probability
Vignesh 8
ConvenienceSampling
JudgmentalSampling
QuotaSampling
SnowballSampling
Systematic Stratified Cluster Sequential & Double
Simple Random
Survey & Sampling Exercise!
Vignesh 9
Managing the agency
• Multiple levels of sub-contracting
• Partners, but vendors too..
– Less work, more money
• In touch with the last important person
– Visit, if needed.– Visit, if needed.
• Calculate the manpower days & keep buffer
• Sampling – useful for cross checking
• Random calling respondents to cross check
– Visiting, if needed.
Vignesh 10
Training of Interviewers
• Interviewers – Foot soldiers of data collection
• Share the questionnaire well in advance
• Explain the purpose of study
• Reading of each question by the group in circle
• Mock interviews• Mock interviews
• Language of the questionnaire
• Moderate the supervisor, if needed.
• Insist on same set of interviewers for the entire
study
Vignesh 11
References
• Babbie, E. (2009). The practice of social research
(12th ed.). Belmont, CA: Wadsworth
• Malhotra, N. K and Dash, S. (2011). Marketing
research: An applied orientation. Delhi, Chennai:
Pearson.Pearson.
Vignesh 12
Q & A?
Vignesh 13
Thank you!Thank you!
Vignesh 14