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Violent Media Content: A Cross-Media, Longitundinal Analysis
Unformatted Document Text:  27 violence against people and physical violence against objects occurred (see Table 3). Results find that the decrease in the overall percentage of media content that contains violence has been fairly linear over time (1979-1983 M = 44.73, SD = 35.50; 1984-1988 M = 44.22, SD = 30.43; 1989-1993 M = 26.82, SD = 19.51; 1994-1999 M = 23.21, SD = 14.62; F [3, 781] = 43.63, p < .001). Bonferroni comparisons show that the means for nearly all combinations of groups are significantly different. On the other hand, the number of acts of physical violence against people in violent content has increased over time in an equally linear fashion (1979-1983 M = 5.50, SD = 7.97; 1984-1988 M = 6.05, SD = 10.08; 1989-1993 M = 9.10, SD = 10.31; 1994-1999 M = 9.23, SD = 8.92; F [3, 785] = 7.74, p < .001). Bonferroni post hoc comparisons once again show significant differences between nearly all groups. Significant differences were also found across the four time periods for number of acts of verbal violence against people and number of acts of physical violence against objects. However, the patterns were non-linear and the Bonferroni post hoc comparisons show group by group differences approach but do not meet traditional standards for statistical significance (see Table 3). Finally, we analyzed possible changes in amount and type of violent content over time by medium. Within the medium of newspapers, Pearson’s correlations revealed that the newspapers in the sample had generally become less violent over time (N = 136). The percent of newspaper content that contained violence (r = -.42, p < .001), the numbers of acts of physical violence against people (r = -.37, p < .001), and the numbers of acts of physical violence against objects in stories with violence (r = -.37, p < .001) all decreased over time. Within the medium of newsmagazines, no significant differences occurred over time (percent violent, r = -.06, ns, physical violence against people, r = -.14, ns,

Authors: Scharrer, Erica.
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27
violence against people and physical violence against objects occurred (see Table 3).
Results find that the decrease in the overall percentage of media content that contains
violence has been fairly linear over time (1979-1983 M = 44.73, SD = 35.50; 1984-1988
M = 44.22, SD = 30.43; 1989-1993 M = 26.82, SD = 19.51; 1994-1999 M = 23.21, SD =
14.62; F [3, 781] = 43.63, p < .001). Bonferroni comparisons show that the means for
nearly all combinations of groups are significantly different. On the other hand, the
number of acts of physical violence against people in violent content has increased over
time in an equally linear fashion (1979-1983 M = 5.50, SD = 7.97; 1984-1988 M = 6.05,
SD = 10.08; 1989-1993 M = 9.10, SD = 10.31; 1994-1999 M = 9.23, SD = 8.92; F [3,
785] = 7.74, p < .001). Bonferroni post hoc comparisons once again show significant
differences between nearly all groups. Significant differences were also found across the
four time periods for number of acts of verbal violence against people and number of acts
of physical violence against objects. However, the patterns were non-linear and the
Bonferroni post hoc comparisons show group by group differences approach but do not
meet traditional standards for statistical significance (see Table 3).
Finally, we analyzed possible changes in amount and type of violent content over
time by medium. Within the medium of newspapers, Pearson’s correlations revealed that
the newspapers in the sample had generally become less violent over time (N = 136). The
percent of newspaper content that contained violence (r = -.42, p < .001), the numbers of
acts of physical violence against people (r = -.37, p < .001), and the numbers of acts of
physical violence against objects in stories with violence (r = -.37, p < .001) all decreased
over time. Within the medium of newsmagazines, no significant differences occurred
over time (percent violent, r = -.06, ns, physical violence against people, r = -.14, ns,


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