× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
g
3
3
2
J
2
p
2
m
2
h
2
s
2
r
2
d
2
l
2
a
2
Home Q & A Board Biology-Related Homework Help Medicine Nursing and Clinical
New Topic  
krisantiaaa krisantiaaa
wrote...
Go to Answer
Posts: 753
Rep: 0 0
6 years ago
A study is internally valid to the extent that:
 
  A) All alternative explanations of the results can be ruled out
  B) An experimental design was used
  C) Intervention fidelity was maintained
  D) A strong counterfactual was established
Read 186 times
2 Replies
Replies
Answer verified by a subject expert
Harley0507Harley0507
wrote...
#1
Top Poster
Posts: 879
Rep: 8 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

wrote...
#2
Educator
4 years ago
Internal validity is the extent to which it can be inferred that the independent variable is truly causing the outcome. Experiments (or randomized controlled trials, RCTs) involve an intervention (the researcher manipulates the independent variable by introducing an intervention; control (including the use of a control group that is not given the intervention and represents the comparative counterfactual); and randomization or random assignment (with participants allocated to experimental and control groups at random to make the groups comparable at the outset). Intervention fidelity helps to avert biases and gives potential benefits a full opportunity to be realized. A counterfactual is what would have happened to the same people simultaneously exposed and not exposed to a causal factor. The effect is the difference between the two. A good research design for cause-probing questions entails finding a good approximation to the idealized counterfactual.
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1099 People Browsing
 120 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 327
  
 509
  
 2376
Your Opinion
Do you believe in global warming?
Votes: 370
Previous poll results: Who will win the 2024 president election?