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A presentation on Secondary Data and Survey Techniques
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Submitted By:Navkiran, Raj and
Umesh16/09/2010
RMDM Presentation
Submitted To: Prof. Manbeena Lehal
ResearchPrimary DataSecondary DataSurveyQuestionnaireObservation
Research
ResearchResearch can be
defined as the search for knowledge/ information or as any systematic investigation to establish facts.
Why is research needed?
Research
Exploratory
Descriptive
Causal
Primary Data
Data originated by the researcher for the specific purpose of addressing the research problem.
Primary Data
Observation
Focus Group
Interviews
Survey
Secondary Data
Secondary Data
Data collected for some purpose other then the problem at hand.
Primary Data Vs Secondary Data
For the Problem at hand
Very involved
High cost
Time taking
For other Problems
Rapid and easy process
Relatively Low
Short
Secondary Data
Internal
External
Ready to use
Requires further
processing
Published materials
Computerized data bases
Syndicated services
Internal Data
Ready to use
Requires further processing
External Data
Published materials
Computerized data bases
Syndicated services
Evaluation of data
Criteria Issues Remarks
Specification / methodology
Data collection method, response rate, quality, sampling techniques, sample size, questionnaire design etc.
Data should be reliable, valid and generalizable
Error / accuracy
Examine error in approach Access accuracy by comparing data from different sources.
Currency Time lag between collection and publication of data
Census data are periodically updated
Objective Why was the data collected? Objective determines the relevance
Dependability Credibility, reputation, trustworthiness
Data should be obtained from original source
Advantages
Low CostsSpeedAvailabilityFlexibilityAccessibility
Disadvantages
AccuracyQualityTime FramePoor Fit
Questionnaire
QuestionnaireA structured technique for data collection
that consists of questions, written or verbal, that a respondent answers.
Types of interviewing methods
Personal questionn
aire
Mail questionn
aire
Telephone questionn
aire
Survey
A structured questionnaire given to respondents, designed to elicit specific information.
SURVEY METHODES
Telephone interviewing
Personal interviewing
Mail interviewing
Electronic interviewing
traditional
Computer- assisted
In- home
Mall intercept
Computer- assisted
Mail panel
internet
Observation
The recording of behavioral pattern of people, objects and events in a systematic manner to obtain information about the phenomenon of interest.
Observation Methods
Personal observatio
n
Mechanical observatio
nAudit
Content Analysis
Trace Analysis