× 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
New Topic  
k123p k123p
wrote...
Posts: 783
Rep: 0 0
6 years ago
Statistical studies in which researchers control variables of interest are
 a. experimental studies.
  b. control observational studies.
  c. non-experimental studies.
  d. observational studies.
Read 66 times
1 Reply
Replies
Answer verified by a subject expert
lirpaprillirpapril
wrote...
Top Poster
Posts: 1142
Rep: 6 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

k123p Author
wrote...

6 years ago
This calls for a celebration Person Raising Both Hands in Celebration
wrote...

Yesterday
Thanks
wrote...

2 hours ago
Just got PERFECT on my quiz
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1123 People Browsing
 120 Signed Up Today
Related Images
  
 158
  
 228
  
 193
Your Opinion
Who's your favorite biologist?
Votes: 586