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Chapter 6: Research strategies and Validity - Coggle Diagram
Chapter 6: Research strategies and Validity
Research strategies
Descriptive research strategy: examining individual variables
Strategies that examine relationships between variables
Relationships between variables
The correlational research strategy: measuring two variables for each individual
Comparing two or more sets of scores: The experimental, quasi-experimental, and non-experimental research strategies
The non-experimental research strategy
The quasi-experimental research strategy
The experimental research strategy
Nonexperimental and correlational research
Research strategy summary
Research strategies, research designs, and research procedures
research procedures
Research strategies
Research designs
Data structures and statistical analysis
Summary
Threats to external validity
Category 1: Generalizing across participants or objects
Volunteer bias
Participant characteristics
College students
Cross-species generalizations
Selection bias
Category 2: Generalizing across features of a study
Novelty effect
Multiple treatment interference
Experiment characteristics
Category 3: Generalizing across features of the measures
Generality across response measures
Time of measurement
Sensitization
Threats to internal validity
Extraneous variables
Confounding variables
Extraneous variables, confounding variabales and internal validity
Environmental variables: General threats to internal validity for all studies
Participant variables: Threats to internal validity for studies comparing different groups
Time-related variables: Threats to internal validity for groups comparing one group over time
More about internal and external validity
Balancing internal and external validity
Artifacts: Threats to both internal and external validity
Experimenter bias
Demand characteristics and participant reactivity
Exaggerated variables
Validity and individual research strategies
External and internal validity
External validity
Internal validity
Validity and the quality of a research study