Some researchers have noted that adolescents who spend a lot of time playing video or computer games are at greater risk for depression and violence. This is an example of: a.an observational study with lurking variables that may explain the association. b.a paired data experiment, because we are studying both aggression and game playing. c.a single-blind experiment, because the subjects knew they were playing games. d.a valid conclusion, because more time yields more aggression is a positive association.

Answered: observational

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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	a.	an observational study with lurking variables that may explain the association.
	b.	a paired data experiment, because we are studying both aggression and game playing.
	c.	a single-blind experiment, because the subjects knew they were playing games.
	d.	a valid conclusion, because more time yields more aggression is a positive association.