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23 Cards in this Set
- Front
- Back
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Internal validity (“confounds”)
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Group assignments
Procedures |
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External validity
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Sample population?
Context: Research lab “real” settings & contexts? Conditions: Independent variable “real” conditions? Outcomes: Dependent variable adequate “model” of phenomenon? |
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Ecological validity (context & conditions):
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Researcher effects
Participant effects Setting effects |
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Operational Definitions
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a
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hypothetical constructs
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a
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confounds
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a
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Replicate
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a
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“Converging” study
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a
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Blind
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a
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Double blind
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a
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Social desirability responding
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a
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Reactive measures
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a
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Who do you want to generalize to?
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Who is the target population?
broad external validity narrow internal validity How do you decide who is a member? demographic / behavioral criteria? subjective / attitudinal? |
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Is a Probability or random sample possible?
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“Hidden” population?
Socially undesirable research topic? Easily available via telephone, door-to-door? Sampling frame adequate to choose selection method? |
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Probability sampling
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simple
multi-stage cluster or stratified (Most externally valid Assumes: Clear sampling frame Population is available Less externally valid for hidden groups) |
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simple
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a
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multi-stage
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a
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cluster or stratified
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a
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Non-probability sampling
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targeted / multi-frame
snowball quota, etc. (Less externally valid High “convenience” Best when: No clear sampling frame Hidden / avoidant population) |
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Types of Non-probability Samples
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Haphazard
Modal instance Venue – time / space Multi-frame Snowball / Respondent driven Web Quota Heterogeneity (Just have a general idea of the advantages & disadvantages of different approaches, and perhaps be able to give an example.) |
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Study naturally occurring events that could not be brought into a lab or a true experiment.
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Measurement studies
Retrospective designs |
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Measurement studies
Retrospective designs |
a
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Measurement studies
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a
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