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 30 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
Wow, this really help

amynguyen1221

  • Member
  • Posts: 355
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

A horizontally opposed engine design helps to lower the vehicle’s center of gravity. A horizontally opposed engine design helps to lower the vehicle’s center of gravity.
The major internal features of a neuron. The major internal features of a neuron.
Experimental Apparatus for Fluidization Experiment Experimental Apparatus for Fluidization Experiment
Modern house door design Modern house door design
Modern house door design Modern house door design
Trapezoidal Rule Graph Trapezoidal Rule Graph
Video: Osteoporosis

For a complete list of videos, visit our video library