« previous next »

Author Question: In experimental designs, random assignment of participants helps to reduce threats to A) internal ... (Read 37 times)

deesands

  • Hero Member
  • *****
  • Posts: 514
on: Aug 4, 2018
In experimental designs, random assignment of participants helps to reduce threats to
 
  A) internal validity.
  B) external validity.
  C) construct validity.
  D) statistical validity.

Question 2

In an experiment, it is of great importance to employ
 
  A) biased participant assignment.
  B) systematic manipulations of the dependent variable.
  C) payment of participants in order not to rely on volunteers.
  D) random assignment of participants to conditions.


Chocorrol77

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Aug 4, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

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?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

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

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

The internal organization of cells, tissues, organs, and organ systems in a mammal. The internal organization of cells, tissues, organs, and organ systems in a mammal.
The internal structures of the outer, middle, and inner ear. The internal structures of the outer, middle, and inner ear.
The internal anatomy of the kidney. The internal anatomy of the kidney.
Experimental Treatment of a Prion Protein Infection Experimental Treatment of a Prion Protein Infection
a) Using a soft pillow rather than a hard bolster under the knees will reduce pressure on the back ... a) Using a soft pillow rather than a hard bolster under the knees will reduce pressure on the back ...
Discrete random variables- Probability Distribution Function Discrete random variables- Probability Distribution Function
Video: A Human Karyotype Preparation Animation

For a complete list of videos, visit our video library