Psychology Notes Fri Feb 16th

Psychology Notes Fri Feb 16th - group or control group (may...

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Hypothesis Testing -Start with a Null Hypothesis -Need to collect enough data to reject the Null Hypothesis -Up to you to prove yourself right, not the world to prove you wrong -Type 1 Error – Rejecting the Null inappropriately -Type 2 Error – Accepting the Null hypothesis inappropriately Between Group Designs -You assign subjects to one group or another and test a single condition -Small number or subjects Within Designs - Hybrid Designs - Pre Experimental Designs/One Shot Case Study - Taking a group, applying a treatment, and then applying a post test Before/After -Taking a group/pre-test/treatment/post-test True Experimental Designs Post Test Only – treatment and post test, involves random assignment to experimental
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Unformatted text preview: group or control group (may have a placebo group as well) Pretest/Posttest Design pretest/treatment/posttest, involves random assignment to experimental group or control group (may have a placebo group as well) Solomon 4 group Design-look to book (his example is somewhat nonsensical) Internal Validity-are you really getting the effect of the independent variable? Or some other factor? Threats-selection-failure of random assignment History external events Maturation Testing-need to watch out for pre-test sensitization (they get better on post cuz theyve taken test already) External Validity-does the info you gain apply or generalize...
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This note was uploaded on 04/27/2008 for the course PSYC 320 taught by Professor Rideout during the Spring '08 term at Ursinus.

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Psychology Notes Fri Feb 16th - group or control group (may...

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