Author Question: By using __________ assignment of participants to treatment conditions, investigators increase the ... (Read 44 times)

mpobi80

  • Hero Member
  • *****
  • Posts: 519
By using __________ assignment of participants to treatment conditions, investigators increase the chances that participants characteristics will be equally distributed across treatment groups.
 
  A) sequential
  B) random
  C) systematic
  D) correlational

Question 2

In an experimental study examining whether children who are read to more often score higher on vocabulary tests in first grade, the independent variable would be the __________.
 
  A) frequency of read-alouds
  B) type of books parents read
  C) childs vocabulary score
  D) difficulty of vocabulary words



adammoses97

  • Sr. Member
  • ****
  • Posts: 337
Answer to Question 1

Answer: B

Answer to Question 2

Answer: A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

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?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

For a complete list of videos, visit our video library