Chapter 1. How to Experiment Badly
true
Stat Tutor
true
true
Question 1
2:07
Question 1.1
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Incorrect. Answer C includes a placebo or fake treatment with a control group. Plus, the subjects are randomly assigned to the two groups. Both of these will "fix" the original study. Additionally, taking some type of measurement that is not self-reporting will improve the study.
Correct. Answer C includes a placebo or fake treatment with a control group. Plus, the subjects are randomly assigned to the two groups. Both of these will "fix" the original study. Additionally, taking some type of measurement that is not self-reporting will improve the study.
Incorrect. Try again.
2
Questions 2-3
3:11
Question 1.2
bK27oU4f2NjPZSJw9gwG652/merkoptw0mEbutkI+L7qggFbH1foInWANxGDImD6+Lhb98Up29XJitEt1QTwaAyaW4nS8BcYENH0c1eLO7i41sDENwP7WOYDpbHxzJIM4cB//R8KBmrtUARmsxz4I/avm3be7X7G94y0qwC6rYroDP/yNBLkfYkvySYMf0Qaczic68x4KMU=Incorrect. The best fix would be to create a study that includes a placebo or fake treatment with a control group. Here, the subjects are randomly assigned to the two groups. Additionally, taking some type of measurement that is not self-reporting will improve the study.
Correct. The best fix would be to create a study that includes a placebo or fake treatment with a control group. Here, the subjects are randomly assigned to the two groups. Additionally, taking some type of measurement that is not self-reporting will improve the study.
Incorrect. Try again.
2
Question 1.3
/xz/oU+2aLKxozMSKOjKQWLaMQrRoKYiZ8X292aQIio2yZQEy24rFQK86k5XPNZwQim3/GsIWDCmb/ricPX53eM4RKP6TotKnoIeTuiGWMkAMO34GfqRavYP30Xgp512XYaYTz13mic7483hb2w0NOl8xXazKeuLTTfkmMH5hJoGTZ2yodKKNJz07gllCs6n1aaoyUzg/d8=Incorrect. Without randomization, studies cannot yield valid inferences.
Correct. Without randomization, studies cannot yield valid inferences.
Incorrect. Try again.
2