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

Author Question: Why would a researcher need to be concerned about the administration of a pretest and posttest in a ... (Read 12 times)

D2AR0N

  • Hero Member
  • *****
  • Posts: 561
on: Jul 8, 2018
Why would a researcher need to be concerned about the administration of a pretest and posttest in a research study?
 
  a. It is a threat to external validity.
  b. It is a threat to internal validity.
  c. It is a form of selection bias.
  d. It is a form of maturation

Question 2

A study in which subjects receive more than one experimental treatment and then are followed over time is based on the ____________ design.
 
  Fill in the blank with correct word


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dellikani2015

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 8, 2018
Answer to Question 1

b. It is a threat to internal validity.

Answer to Question 2

crossover


D2AR0N

  • Member
  • Posts: 561
Reply 2 on: Jul 8, 2018
Gracias!

Kedrick2014

  • Member
  • Posts: 359
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

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

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Nasal drug administration Nasal drug administration
Intramuscular drug administration: (a) cross section of skin showing depth of needle insertion Intramuscular drug administration: (a) cross section of skin showing depth of needle insertion
Health History Assessment Questions Pertinent to Drug Administration Health History Assessment Questions Pertinent to Drug Administration
Chinese officials have become concerned about the lopsided gender ratio that their “one couple, ... Chinese officials have become concerned about the lopsided gender ratio that their “one couple, ...
Food and Drug Administration (FDA) Pregnancy Categories Food and Drug Administration (FDA) Pregnancy Categories
Summary of Drug Action: Common Routes of Administration Summary of Drug Action: Common Routes of Administration
Video: Global warming and its effect on climate change

For a complete list of videos, visit our video library