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

Author Question: The effects of repeated testing represent a threat to internal validity primarily because A) ... (Read 71 times)

jake

  • Hero Member
  • *****
  • Posts: 538
The effects of repeated testing represent a threat to internal validity primarily because
 
  A) participants get bored.
  B) the researcher gets tired of giving the same test over and over.
  C) of regression to the mean.
  D) participants may gain proficiency through repeated practice.

Question 2

A confounding factor that can occur when observation procedures change during the study is called
 
  A) regression.
  B) maturation.
  C) selection.
  D) instrumentation.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

leannegxo

  • Sr. Member
  • ****
  • Posts: 374
Answer to Question 1

Answer: D

Answer to Question 2

Answer: D




jake

  • Member
  • Posts: 538
Reply 2 on: Aug 4, 2018
Thanks for the timely response, appreciate it


helenmarkerine

  • Member
  • Posts: 324
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

For a complete list of videos, visit our video library