This topic contains a solution. Click here to go to the answer

Author Question: How can scientific studies control for the Hawthorne effect, placebo effect, and researcher ... (Read 106 times)

frankwu

  • Hero Member
  • *****
  • Posts: 549
How can scientific studies control for the Hawthorne effect, placebo effect, and researcher bias?

Question 2

Synthesis of norepinephrine and collagen requires _____.
 a. selenium
  b. zinc
  c. copper
  d. iron



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ebe

  • Sr. Member
  • ****
  • Posts: 320
Answer to Question 1

To control for Hawthorne effect, placebo effect, and researcher bias, scientists use blinding (especially double-blinding); use randomization; and control for confounding variables.

Answer to Question 2

c




frankwu

  • Member
  • Posts: 549
Reply 2 on: Aug 20, 2018
Gracias!


cam1229

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Excellent

 

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

For a complete list of videos, visit our video library