feb 27th - "Time is the coin of your life. It is the...

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"Time is the coin of your life. It is the only coin you have, and only you can determine how it will be spent. Be careful lest you let other people spend it for you." - Carl Sandburg
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Standard Error  of the Sample Mean The standard deviation of the  sampling distribution of the  sample means.  It is a measure of  the variability of the sampling  distribution of the sample mean.
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Experimental Process Subjects Treatment Observation
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Variables Explanatory Variable (Independent variable) Response Variable (Dependent variable) Lurking or  Confounding Variable
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Alternative  Experimental Designs Completely Randomized Design Block Design Matched Pairs Design Double Blind Design
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Completely  Randomized Design Simplest Design Strategy Each subject is randomly assigned  to one group Typically,  group sizes are  identical
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Completely  Randomized Design Subjects Subjects Group A Group A Group B Group B Group C Group C Adams Adams X Allen Allen X Bailey Bailey X Dalton Dalton X Gray Gray X James James X Roberts Roberts X Smith Smith X White White X
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Block Design Used when known extraneous variables may  influence the experiment Subjects are pre-sorted by the influencing  variables, then partitioned into similar  blocks Subjects from each block  are randomly  assigned to groups
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One-Dimensional Block Design  to Control Age Age Subject Group A Group B Group C 16 Gray 17 May May Gray Lee 20 Lee 28 Jones 29 Cooper Smith Jones Cooper 29 Smith 30 Adams 33 Brown Brown Adams Magee 34 Magee
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Matched Pairs  Design Each subject receives each  treatment Treatment sequence is randomly  chosen for each subject
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feb 27th - "Time is the coin of your life. It is the...

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