Correct Answer:
B. Control
Control in research means holding all variables constant except the one being tested, isolating the treatment's effect and strengthening confidence in causal conclusions.
Related MCQs
Suppose the high-achieving group contains 20 students, of whom 18 answer an item correctly, while 8 students in the low-achieving group answer it correctly. Using D = (NH − NL) / n, where n = 20, the discrimination index is:
A.
0.20
B.
0.40
C.
0.50
D.
0.90
Correct answer is:
C. 0.50
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A researcher compares a new aptitude test with an established test measuring the same construct at the same time. This assesses:
A.
Predictive validity
B.
Concurrent validity
C.
Face validity
D.
Ecological validity
Correct answer is:
B. Concurrent validity
Do you agree with this answer?
Education plays a vital role in:
A.
Character formation
B.
Promoting social reforms
C.
Promoting national integration
D.
All of the above
Correct answer is:
D. All of the above
Do you agree with this answer?
The National Technology Council (NTC) was established in 2015 to:
A.
Regulate social media
B.
Promote STEM education and tech entrepreneurship
C.
Ban mobile phones in schools
D.
Conduct IT exams for government jobs
Correct answer is:
B. Promote STEM education and tech entrepreneurship
Do you agree with this answer?