1: Sampling Techniques and Sources of Bias Know and understand the difference between a and population sample How is each one measured (what do we use to measure them)? Why do we often measure samples instead of populations? Know the different types of and how to spot them in different situations bias is anything that causes a sample to be not representative of the population of interest Bias You must be able to articulate the bias is, it should be considered bias, and it distorts the what why how results from what they otherwise trial be. What is the difference between and sampling error sampling bias? How can a small sample size affect the validity of the sample? (this is related to sampling error rather than bias) Define the types of sampling bias (a bias in was in the Define the types of response bias (a bias in the who what sample) sample is saying) Undercoverage Loaded Questions Nonresponse bias False answers Voluntary response bias
1: Sampling Techniques and Sources of Bias Know and understand the difference between a population and sample How is each one measured (what do we use to measure them)? Why do we often measure samples instead of populations? Know the different types of bias and how to spot them in different situations Bias is anything that causes a sample to be not representative of the population of interest You must be able to articulate what the bias is, why it should be considered bias, and how it distorts the results from what they otherwise be. What is the difference between sampling error and sampling bias? How can a small sample size affect the validity of the sample? (this is related to sampling error rather than bias) Define the types of sampling bias (a bias in who was in the sample) Define the types of response bias (a bias in what the sample is saying) Undercoverage Loaded Questions False answers Nonresponse bias Voluntary response bias trial
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