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II.
Sampling and Experiments |
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A. Data Collection |
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1.
Census |
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2. Sample Survey |
exp
with random selection |
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| Efffect of Sample Size | http://www.stat.tamu.edu/~west/applets/samplemean.html | |
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3. Experiment |
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4.
Observational Study |
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B. Surveys |
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1. Good Survey |
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2. Pop. Sample, SRS |
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3. Bias |
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4. SRS, Stratified,
Cluster |
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C. Experiments |
simulates
a 2-condition experiment |
http://onlinestatbook.com/stat_sim/repeated_measures/index.html |
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1. Good Experiment |
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2. Treatment |
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Control |
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Experimental Units, |
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Replication |
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3. Bias |
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Confounding |
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Placebo
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Blinding |
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4. Randomized Design |
random
generator tool |
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5. Block/Matched Pairs |
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D.
Generalization |
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