Author Question: The first decision for selecting subjects for an experiment is: a. deciding how particular ... (Read 23 times)

B

  • Hero Member
  • *****
  • Posts: 570
The first decision for selecting subjects for an experiment is:
 
  a. deciding how particular members of the target population will be selected
  b. deciding on the target population
  c. threats to internal validity
  d. threats to external validity

Question 2

Which of the following statements is accurate?
 
  a. to guard against the Hawthorne effect in medical research, scientists will give a placebo to the experimental group
  b. to guard against the Hawthorne effect in medical research, scientists will give the experimental group the independent variable
  c. to guard against the Hawthorne effect in medical research, scientists will give a placebo to the control group
  d. there is no way to guard against the Hawthorne effect in medical research



DylanD1323

  • Sr. Member
  • ****
  • Posts: 314
Answer to Question 1

b

Answer to Question 2

c



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

For a complete list of videos, visit our video library