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 78 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
Gracias!

TheDev123

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

The internal structures of the outer, middle, and inner ear. The internal structures of the outer, middle, and inner ear.
Internal structures at the front of the eye. Internal structures at the front of the eye.
Internal intercostals Internal intercostals
Proper bicycle safety Proper bicycle safety
How to use the quotient rule to find the derivative of a function How to use the quotient rule to find the derivative of a function
Trapezoidal rule (approximation with two rectangles) Trapezoidal rule (approximation with two rectangles)
Video: Bacteriophage (Virus) - Mice Experiment

For a complete list of videos, visit our video library