1/4
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai | Chat |
|---|
No analytics yet
Send a link to your students to track their progress
key features of correlational/observational design
no manipulation, only dependent variables
type of claim (association claim between variables)
hypothesis (must specify directionality)
reminder: ways to measure variables
self-report
observation
physiology
reminder: 3 requirements for inferring causality
temporal precedence
covariation
ruling out alternatives
quasi-experiment/nonequivalent groups
no random assignment
assigned by teachers, regulators, nature
tends to have more purposeful group samplings
why quasi experiment?
ethics - balancing real-world practical or ethical necessity with the scientific and moral challenges of lacking random assignment
feasibility - doable and practical alternatives to true experiments when random assignment is unethical, impossible, or too costly
external validity - quasi experiments have high external validity because they study real-world groups in natural settings