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Where do we get the data? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
For Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Live Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Variables ,[object Object],[object Object],[object Object],[object Object]
Varying and Controlling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Treatment ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Placebo Effect ,[object Object],[object Object],[object Object],[object Object]
Sampling ,[object Object],[object Object],[object Object],Frosh Sophomore Junior Senior Male 13% 12% 12% 13% Female 13% 13% 11% 13%
Sample Scheme Characteristics ,[object Object],[object Object],[object Object],[object Object]
Sampling Strategies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Sampling Strategies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
More Sampling Selection and Collection ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example: Student Opinion Poll ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example: Crashworthiness ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Bias ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
More on Bias ,[object Object],[object Object]

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