If the researchers would like to determine whether certain incentives help individuals to adhere to taking their drugs on time (the researchers are very concerned about internal validity), should they pay more attention to random assignment or random selection?

If the researchers would like to determine whether certain incentives help individuals to adhere to taking their drugs on time (the researchers are very concerned about internal validity), should they pay more attention to random assignment or random selection?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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