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

Author Question: The major threat to the internal validity of research on articulation problems in young children is ... (Read 107 times)

xclash

  • Hero Member
  • *****
  • Posts: 681
on: Jun 20, 2018
The major threat to the internal validity of research on articulation problems in young children is
 
  a. regression.
  b. instrumentation.
  c. mortality.
  d. maturation.
  e. selection.

Question 2

The internal validity threat that randomization eliminates in an experimental study is
 
  a. selection bias.
  c. instrumentation.
  b. subject effects.
  d. history.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

peilian

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jun 20, 2018
Answer to Question 1

D

Answer to Question 2

A


xclash

  • Hero Member
  • *****
  • Posts: 681
Reply #2 on: Jun 20, 2018
Thank you


peilian

  • Sr. Member
  • ****
  • Posts: 316
Reply #3 on: Jun 20, 2018
No problem :)


« previous next »
 

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

The internal structures of the eye. The internal structures of the eye.
Diverticulosis. Figure illustrates external and internal appearance of diverticula. Diverticulosis. Figure illustrates external and internal appearance of diverticula.
Internal view of the heart with aorta, vena cava, and pulmonary arteries and veins. Internal view of the heart with aorta, vena cava, and pulmonary arteries and veins.
A strike by 800 women shoemakers in Lynn, Massachusetts, in 1860. In 1851 a Lynn shoemaker had adapt A strike by 800 women shoemakers in Lynn, Massachusetts, in 1860. In 1851 a Lynn shoemaker had adapt
Classification of Antidepressants: Treatment of Major Depressive Disorder Classification of Antidepressants: Treatment of Major Depressive Disorder
Major Types of Introns Major Types of Introns
Video: Mitochondrial Structure & ETC Protein Complexes (Protein Complexes and Electron Transport)

For a complete list of videos, visit our video library