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Unformatted text preview: Selection & Assignment • Participant Selection – General population – Target population – Accessible population • Sampling – Representative sample – Random sampling – Stratiﬁed random sampling – Ad hoc samples (Convenience sampling) • Participant Assignment – Free random assignment (Large samples) – Matched random assignment (Small samples) • Control Through Experimental Design Control Posttest No Treatment Pretest Control Condition Posttest Treatment Pretest Experimental Condition...
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This note was uploaded on 09/13/2010 for the course PSC 78918 taught by Professor Dawnteearly during the Fall '09 term at UC Davis.
- Fall '09