Download - Rm 11 sampling By uma sekaran
Research Methodology
Session 11Research Design
Sampling
Latest Schedule (1)Date Tuesday/
WednesdayFriday
19 - 23 April RPPresentation
Academic Writing 9.00
26 – 30 April SamplingEthical Clearance
Lit Review due
3 – 7 May PresentationsIBM Awards Evening
10 – 14 May RP due Lecture on EC
TEDx
Latest Schedule (2)Date RM Exams
17 - 21 May EC (19 May)
24 - 28 May HRMG (24 May)
MIS (27 May)
31 May - 4 June SE (2 June)Medical (4 June)
7 - 11 June EC Corrections (11 June)
Recap Assignments
Language feedback Language self-reflection Structural PS -> RO -> RQ Sub-problems => hypotheses / research
questions Presentation
Participation Feedback
Preview Sekaran Ch 10
Sampling Final research proposal assignment Ethical Clearance assignment Preparation for 3 – 7 May session
Proposal presentation
Acknowledgments to Uma Sekaran
Acknowledgments to Uma Sekaran
Acknowledgments to Uma Sekaran
Probability Sampling
Simple Random Sampling
Systematic Random Sampling
Stratified Random Sampling
Cluster Sampling
Proportional Sampling
Nonproportional Sampling
Sampling Techniques
Advantage: When done correctly, a small percentage of the population can be selected which saves both time and money without sacrificing accuracy.
Disadvantage: Population characteristics may be over- or under-represented, leading to a generalization of results beyond the characteristics of the sample. This puts the validity at risk.Acknowledgments to Gill Hendry
Acknowledgments to Uma Sekaran
NonprobabilitySampling
Convenience Sampling
Purposeful Sampling
Quota Sampling
Disadvantages:• The generalizability of the findings are limited to the
characteristics of the subjects in the sample.• The sample may be biased.
Advantages: • Easy to administer• Less costly and time consuming
Acknowledgments to Gill Hendry• Snowball sampling
Acknowledgments to Uma Sekaran
Acknowledgments to Uma Sekaran
Sekaran Ch 10 Exercises Ex 1 Ex 10
Research ProposalAssessment Criteria (1) The research proposal (RP) is formulated
clearly The RP contains a proper title page The RP contains a proper table of contents The presentation of the RP complies with
academic standards The RP contains an appropriate brief
introduction
Research ProposalAssessment Criteria (2) The context of the research project is
presented concisely and clearly in the RP The RP contains a proper problem
statement The RP contains properly formulated
objectives derived from the PS A preliminary literature review places this
study within a broader research context
Research ProposalAssessment Criteria (3) The RP concisely outlines how the final
literature survey will be conducted The RP contains tentative critical questions
aligned with the PS and objectives The RP concisely states why the research is
important for the discipline The RP outlines what research
methodology will be employed
Research ProposalAssessment Criteria (4) The RP clearly states how the research
will comply with ethical requirements The RP clearly states how respondents /
interviewees will be selected The RP briefly states how primary data
will be analysed The RP clearly states which factors would
require limitation of validity of results
Research ProposalAssessment Criteria (5) The RP contains a glossary of terms The RP provides a research timeline The RP includes a realistic budget The RP contains an appropriate
bibliography (e.g. key articles & research methodology references)
Sampling in your Project Population and approximate size Sampling choice Sample size
For your study
Ethical ClearanceThings to do Design draft questionnaire / interview
Submit for comment Sent for statistical feedback after EC approved
Complete EC form – extract from RP Informed consent letter Templates provided – adapt
Letters Questionnaire
Ethical ClearanceAssessment Criteria (1) The research instrument (RI) is formulated
in concise and lucid academic language The questions in the RI are based on the
critical research questions of the project The RI solicits appropriate types of
information The questionnaire uses the appropriate
measurement scales
Ethical ClearanceAssessment Criteria (2) The RI is presented in an aesthetically
pleasing manner The RI is designed specifically with
respondents in mind The letter of informed consent
complies with UKZN ethical clearance research principles
Ethical ClearanceAssessment Criteria (3) The RI presents questions in an
appropriate order (e.g. sensitive questions last)
The ethical clearance application form has been completed correctly
Next Session 3 - 7 May Research proposal presentations
Supervisors present 10 minutes max plus questions/comment Participation assessed Pre-load presentations 20 minutes before
start