In this post, I try to explain the importance of random sampling; in my next post, I will explore random assignment. Let me use an (oversimplified) example: Suppose there are 2 million Americans ...

Scott E. Carrell, James E. West, Does Professor Quality Matter? Evidence from Random Assignment of Students to Professors, Journal of Political Economy, Vol. 118, No. 3 (June 2010), pp. 409-432 ...

Using the historical random assignment of MBA students to sections at Harvard Business School (HBS), I explore how executive peer networks can affect managerial decision making. Within an HBS class, ...

In this example, random assignment itself is the instrument. If all patients in the treatment group received the treatment, then the intention-to-treat estimate is the same as the IV estimate. If very ...

Second, the rationale for use of the extreme 4:1 random assignment is unclear, as it results in additional efficiency loss for the primary biomarker-directed versus control arm comparison: a roughly ...

Random assignment is discussed.If our random sample (10,000 people diagnosed with COVID-19) took hydroxychloroquine and most recovered in a couple of weeks and only 5% needed to be hospitalized ...