This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Randomization in selection and assignment can control A) only one variable at a time. B) for ... (Read 66 times)

codyclark

  • Hero Member
  • *****
  • Posts: 538
on: Aug 4, 2018
Randomization in selection and assignment can control
 
  A) only one variable at a time.
  B) for threats to external validity but not for threats to internal validity.
  C) for many variables simultaneously.
  D) for threats to internal validity but not for threats to external validity.

Question 2

When participants are randomly assigned to conditions,
 
  A) potential confounding variables are distributed in a biased manner.
  B) potential confounding variables are distributed equally among the conditions.
  C) an equal number of participants is guaranteed in all conditions.
  D) there will always be an unequal distribution of males and females.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

stano32

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Aug 4, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: B


codyclark

  • Member
  • Posts: 538
Reply 2 on: Aug 4, 2018
Gracias!

ryhom

  • Member
  • Posts: 366
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

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?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Directional selection. Directional selection.
DNA replication is the basis for the perpetuation of life through time DNA replication is the basis for the perpetuation of life through time
Time dependence of the rates of a chemical reaction Time dependence of the rates of a chemical reaction
Attention and memory are in demand during circle time. Attention and memory are in demand during circle time.
Both the top and bottom pattern have the same frequency. However, the amount of on-time varies. Both the top and bottom pattern have the same frequency. However, the amount of on-time varies.
Disitive Time For Meat Disitive Time For Meat
Video: Cardiac Cycle (Part 1 of 4)

For a complete list of videos, visit our video library