In 1995, Andrei interviewed 100 teenagers (all 14 years old) about the kinds of media they preferred to use. Every other year for the next ten years, he asked the same questions of as many of these same young people as he could find. Which of the following research methods is this?
a. Cohort analysis
b. Cross-sectional research
c. Panel study
d. Trend study
c
Communication & Mass Media
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__________ are useful for illustrating differences over time, how a whole is divided into parts, and different amounts or sizes
a) Maps b) Graphs c) Objects d) Models
Communication & Mass Media
Shannon and Weaver's theory of communication has often been criticized for its lack of flexibility because it uses
a. a triangle b. none of these choices c. a circle d. a flat line
Communication & Mass Media