Simpling Bias

A statistical phenomenon is provided. Your job is to figure out an explanation that ties in with bias. Do not exceed 60 words per explanation. (2 points each)
a. Popularity. Your friends are (probably) more popular than you are. Sociologists have conducted surveys in which they select random people and ask for a list of the people they know, and then they contact a sample of the friends and repeat the survey. The people sampled at the second stage have, on average, many more friends than do the people in the original sample. This suggests that, on average, your friends are more popular than you are.
b. Deadly Brawls. A study of fights in bars in which someone was killed found that, in 95% of the cases, the person who started the fight was the one who died.
c. Clinical Illusion. When a clinician is asked to judge the severity of a syndrome among their patients, clinical psychiatrists tend to characterize the syndromes as more serious and long-term, on average, than are estimated by patients when asked on a survey.
Select one option:
• Create an example to demonstrate your understanding of a bias we learned in this module (selection, response, nonresponse). Justify your choice of example.
• Find an article (online news, newspaper, magazines) that misrepresented information because of bias. Be sure to site your source. Justify your choice of example. Cite the source appropriately.