The original online version of this article (Tian, J.J., Zhang, Q., Cao, J. and Rodkin, P. (2016) The Short-Term Effect of Online Violent Stimuli on Aggression. Open Journal of Medical Psychology, 5, 35-42. http://dx.doi.org/10.4236/ojmp.2016.52005) was published as some results data reported mistakenly. The author wishes to correct the errors to:
188 Chinese undergraduates (50% females) were randomly selected to participate in the study. They ranged in age from 19 to 23 years (M = 21.32, SD = 1.52),
3.5. Research Design
A multi-factorial design was employed to examine the main effect and interaction among variables. A 2 (Stimuli type: violent, non-violent) × 2 (Gender: male, female) × 2 (Aggressive personality: HAP, LAP) three repeated measures analysis of variance (ANOVA) were conducted, with stimuli type, gender and aggressive personality as the between-group factor, and goal word as the within-group factor. Stimuli type was the independent variable, and aggression was the dependent variable.
In this study, we use RT to aggressive words as a dependent variable. A three-way analysis of variance (ANOVAs) was performed to examine the main effect of stimuli type on aggression. As expected, the significant main effect of stimuli type was found after violent stimuli exposure [F (1,176) = 21.87, P < 0.001; see Table 1], and that participants who exposed to violent stiumuli displayed higher AAS than those who exposed to nonviolent stimuli. Further, a significant stimuli type × gender interaction was found [F (1, 176) = 20.58, P < 0.001], and further simple effect analysis indicated that AAS of males was significantly smaller when exposing to violent stimuli than when exposing to non-violent stimuli [F (1, 176) = 79.02, P < 0.01], but no significant difference for AAS offemales [F (1, 176) = 0.01, P > 0.05; see Table 2)]. However, no significant movie type × aggressive personality interaction was found [F (2, 176) = 1.05, P > 0.05; see Table 1].
Table 1. ANOVA for AAS among research variables.
Note. **P < 0.001.
Table 2. Post hoc test of AAS difference for males and females.
Note. ***P < 0.001.
5.1. Violent Stimuli Exposure Could Significantly Elevate Aggression
Overall, we found that violent stimuli significantly activated aggression among undergraduates. This result supported our first hypothesis, and it was correspo- ndent with the previous study . Some experts assumed contextual factors were responsible for aggressive behavior after viewing violent movies .
5.3. Violent Stimuli Exposure Did Not Induce Significant Differences in Aggressive Personality
In this study, there was no significant difference in aggressive personality after viewing violent stimuli. This result was not in agreement with hypothesis 3. In the process of adaptability on campus, aggressive paersonality might not the real reason to cause students show more aggression. Hence, educators can ignore the aggressive personality of students after viewing violent stimuli. The aggressive personality might not be a necessary individual factor to impact levels of aggression among Chinese undergraduates after exposing to violent pictures.