The Institute of Psychiatry at Kings College London found that dealing with infomania (information overload) has a temporary, but significant derogatory effect on IQ.t Researchers divided volunteers into two groups. Each subject took an IQ test. One group had to check e-mail and respond to instant messages while taking the test, and the second group took the test without any distraction. The distracted group had an average score that was 10 points lower than the average for the control group. Explain why it is important that the researchers created the two experimental groups in this study by using random assignment. O Using random assigment ensures the conclusion can be generalized to a larger population. O Without random assignment, the researchers cannot make multiple observations for each group. O Using random assigment allows the researchers to implement blocking for this experiment. O without random assignment, the researchers can't hold extraneous variables constant. O Using random assignment produces comparable, unbiased experimental groups.
The Institute of Psychiatry at Kings College London found that dealing with infomania (information overload) has a temporary, but significant derogatory effect on IQ.t Researchers divided volunteers into two groups. Each subject took an IQ test. One group had to check e-mail and respond to instant messages while taking the test, and the second group took the test without any distraction. The distracted group had an average score that was 10 points lower than the average for the control group. Explain why it is important that the researchers created the two experimental groups in this study by using random assignment. O Using random assigment ensures the conclusion can be generalized to a larger population. O Without random assignment, the researchers cannot make multiple observations for each group. O Using random assigment allows the researchers to implement blocking for this experiment. O without random assignment, the researchers can't hold extraneous variables constant. O Using random assignment produces comparable, unbiased experimental groups.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
A1
Transcribed Image Text:The Institute of Psychiatry at Kings College London found that dealing with infomania (information overload) has a temporary, but significant
derogatory effect on IQ.† Researchers divided volunteers into two groups. Each subject took an IQ test. One group had to check e-mail and
respond to instant messages while taking the test, and the second group took the test without any distraction. The distracted group had an
average score that was 10 points lower than the average for the control group.
Explain why it is important that the researchers created the two experimental groups in this study by using random assignment.
O Using random assigment ensures the conclusion can be generalized to a larger population.
O Without random assignment, the researchers cannot make multiple observations for each group.
O Using random assigment allows the researchers to implement blocking for this experiment.
O Without random assignment, the researchers can't hold extraneous variables constant.
O Using random assignment produces comparable, unbiased experimental groups.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman