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

Author Question: The best way to protect the validity of an experiment is through the use of _____. a. nominal ... (Read 25 times)

maychende

  • Hero Member
  • *****
  • Posts: 556
The best way to protect the validity of an experiment is through the use of _____.
 
  a. nominal scaling of variables c. random assignment
  b. random sampling d. representative sampling

Question 2

In the equation Y = bX + a, b is a(n) _________.
 
  a. independent variable
  b. dependent variable
  c. constant
  d. coefficient
  e. constant and coefficient



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nixon_s

  • Sr. Member
  • ****
  • Posts: 359
Answer to Question 1

C
Internal validity is maximized via random assignment of participants to treatment conditions. A random sample is not essential to experiments.

Answer to Question 2

E





 

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

For a complete list of videos, visit our video library