Which experiment would most likely contain experimental bias? a. a company that makes pain relief medication tests the effectiveness of their own medicine compared to that of three other brands. b. a chemistry class performs an experiment in which each reaction has the same amount of starting material and begins at the same temperature. c. a student tests the attraction of bees to flowers by placing four different flowers in the same location and counting how many bees visit each. d. a lab performs a test by giving bacterial colonies the same amount of different antibiotics and growing them under the same conditions.

A, because a company is testing their product against other comapnies. They might be inclined to be biased towards their own product.

Hello,

Question - Which experiment would most likely contain experimental bias?

Answer - A. A company that makes pain relief medication tests the effectiveness of their own medicine compared to that of three other brands.

Why - "In epidemiology, reporting bias is defined as "selective revealing or suppression of information" by subjects (for example about past medical history, smoking, sexual experiences)."

americans began to notice growing differences between the northern and southern sections of the country. there were more people living in cities in the north, which made it more urban. more people lived on farms in the south, which made it more rural. while many people were farmers in the northern states, there were now other ways to make a living, such as working in mechanical cotton gins factories manufacturing cloth, tools and other goods. people in the north supported high tariffs on goods imported from europe because the extra cost encouraged people to “buy american” instead. in the southern states, planters did not like tariffs because they sold most of their production to europe and bought their tools from there as well. southerners believed the protective tariff was something that only northern factory owners keep their profits high. so the southern politicians came up with an idea. they would opt out. they would simply ignore the protective tariff. it was ‘null and void’ in south carolina. the state would not collect the taxes on goods imported into south carolina, no matter what the president said they had to do. this decision led to the nullification crisis.