CMN 140
Tufts University
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Examen
CMN 140 Exam1, CMN 140 Exam 2, CMN 140 Final 194 Questions with Verified Answers
CMN 140 Final Exam Study Guide 
Ch. 13 
Key Idea: When we take a four-dimensional perspective—timing, type, valence, and 
intentionality—of effects, we can better appreciate the broad range of effects the media are 
constantly exerting on us. 
1. Why do we need to broaden our perspective on media effects? Why the narrow perspective 
is problematic? 
With narrow perspective: not able to perceive many effects that are constantly occurring all 
around us; occur outside your control 
broade...