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Unformatted text preview: 3-22-11Btw Ss Design/independent group/randomized group (ch. 10 & 11)Single Factor (Factor is IV) only 1 IVoRandomized 2 group designoAdv.Simple to carry outRequires few Ss (good for money and time)No pretesting or categorization of Ss (do in matching-Ss design)Stats are relatively simple (t test)oDisadv.Provides limited amount of ino. About nature or function of IVoPresence/absence manipulation most common way to create two groups from one IVPresence of the IV is contrasted with the absence of the IVWhat is the experimental group? Control group?Experimental group group that gets the treatmentControl group What is the difference between random assignment and random selecting?Random assignment we are addressing and making sure we have internal validity by makingRandom selection when we take people from our population and randomly select them for our sampleAllows us to look at whether IV has an effect, but nit specific effectsNext step is to look at more or less of IV, will different IVs produce stronger (weaker) effect, what optimum amount...
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This note was uploaded on 04/05/2012 for the course PSY 3213 taught by Professor Staff during the Spring '11 term at FSU.
- Spring '11