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Chapter 5 - Collecting Data - Coggle Diagram
Chapter 5 - Collecting Data
1 - Identify participants
Unit of analysis & at what level?
Specify population & representative sample -Target population & sample
Probability Sampling
Stratified sampling (divide acc to charecteristic)
Multicluster stage sampling (large pop. in stages)
Simple random sampling (no bias)
Systematic sampling (every nth)
Nonprobability Sampling
Snowball sampling (participants ID others, large otherwise unreachable population)
Convenience sampling (willing, able, representative)
Large enough Sample size
Minimize sampling error (diff btw sample estimate and true population score)
Sample size formulas
2 - Obtain Permission
Review board approval
Informed consent
Beneficence
Justice
Respect
Informed consent form
Risks & benefits
Right to info & anonymity
Right to withdraw
Purpose & procedures
Voluntary participation
3 - Decide: What types of data?
Operational definition of each variable
Behavioral observations
Behavior checklist
Factual info
Public documents/records
Attitudinal measures
Affective scale
Digital Data collection
Internet surveys
Social media mining
Performance measure
Aptitude tests
Interest inventory
Achievement/ normative referenced tests
personality assessment
Criterion-referenced tests
Intelligence tests
Choosing
What need to learn about participants for hypothesis?
What info realistically collect?
Advantages vs disadvantages
5 - Administering data collection
Standardization of instruments
Ethical considerations
4 - Locate, select & assess instrument for data collection
Locate and use entirely
Locate & modify
Develop own instrument
Search
Published articles
Commercially available test guides: Mental Measurements Yearbook MMY & Tests In Print TIP
ERIC search
Criteria
Widely cited by other authors
Published reviews
Recent version (5 yrs)
Reliability and validity scores *
Does the instrument procedures fit the research question/hypothesis?
Are adequate scales of measure used?
Combined scales
Categorical scales
Nominal scales
Ordinal scales
Continuous scale
Interval/ratio scales