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

Author Question: What can help rule out the threats to internal validity in an experimental design? a. proper ... (Read 83 times)

Jkov05

  • Hero Member
  • *****
  • Posts: 556
on: Aug 13, 2018
What can help rule out the threats to internal validity in an experimental design?
 
  a. proper selection and assignment of subjects to groups
  b. large sample size
  c. small sample size
  d. nothing can rule out threats to internal validity

Question 2

What type of design is illustrated in the following diagram? Experimental Group 0 X 0 Control Group 0 0 Measurement time1 time2 time3
 
  a. time-series design
  b. classical experiment
  c. cohort design
  d. nonequivalent-groups design


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

smrtceo

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Aug 13, 2018
Answer to Question 1

a

Answer to Question 2

b


Jkov05

  • Member
  • Posts: 556
Reply 2 on: Aug 13, 2018
Great answer, keep it coming :)

amit

  • Member
  • Posts: 364
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Absorption & Stripping Design Random packing materials Absorption & Stripping Design Random packing materials
Sample of a business card design. Sample of a business card design.
Rule of Law and Productivity Rule of Law and Productivity
To find the derivative use product rule To find the derivative use product rule
Modern house door design Modern house door design
Experimental evidence of cytoplasmic localization in an amphibian oocyte. Experimental evidence of cytoplasmic localization in an amphibian oocyte.
Video: Oxygen transport - methods and oxyhemoglobin

For a complete list of videos, visit our video library