2 Preliminary experiment: The effect of anger on hostile attribution and aggressive intention
2.1 Participants
Participants were 50 undergraduate students (31 males and 19 females), who were randomly selected for the study. Of these, three did not complete the experiment and were eliminated. The final number of participants was 47 (30 males and 17 females), and the age range was 18–27 years old (average age=23.11 [SD=2.25]). Participants were randomly assigned to either the experimental group (n=24) or the control group (n=23). The Ethics Committee of Ningbo University approved this study, in accordance with the ethical principles of the Declaration of Helsinki 1975 (and its revised version). All participants, in the preliminary as well as main experiments, provided written informed consent prior to the study. After completing the study, the participants received monetary rewards.
2.2 Materials
2.2.1 Anger
To measure participants’ anger, we used the Emotional State Self-Rating scale by Peng et al. [44]; on seven items, participants expressed the extent to which they appeared in the scale, such as “hate.” Considering the consistency of the scores, the five-point scoring in the original scale was changed to a seven-point scoring (1=none at all; 7=extremely strong). Higher scores represented stronger anger. Cronbach’s alpha for the scale was
2.2.2 Hostile attribution
Following Gagnon et al., six ambiguous situations (situations that can be interpreted as hostile or non-hostile) were selected [45]. For example, “Imagine that a classmate did not invite you to attend his birthday party; what would you think was the reason for not being invited?” Each situation contained two hostile and two non-hostile explanations. A seven-point scoring system was adopted, ranging from 1 (not possible at all) to 7 (very possible). Participants’ hostile attribution in the ambiguous situations was measured according to the score given to the hostile explanation: higher the score, stronger the hostile attribution. The internal consistency coefficient for the explanation of hostility in all situations was 0.77.
2.2.3 Anger intentions
To measure the participants’ aggressive intention toward individuals in ambiguous situations, we used direct questions, such as “How much do you want to be angry with these two classmates?” A seven-point scoring system was used, ranging from 1 = “not at all” to 7 = “want a lot.” A higher score indicated more aggressive intention. Previous studies have demonstrated that direct inquiry can form coherence with the aforementioned hostile attribution situation to achieve consistency between the target in the former and the latter case, thereby proving to be more effective than a single questionnaire or scale measuring aggression [3].
2.2.4 Anger priming technique
Based on the work of Sjöström and Gollwitzer, the recall method was used to manipulate both anger-inducing and general situations [38]. In the anger-inducing situations, participants were asked to recall a recent experience (including the timing, the place, and a general description of what happened) that had generated anger; this experience could also induce strong anger at the present moment. In the general situation, participants were asked to recall the recent description of a product or the explanation of a word in a book. In both situations, participants were asked to write down all the details they were asked to recall. Further details regarding this can be found in the Supplementary Information.
2.3 Experimental design and procedures
A single-factor (situation type: anger-inducing vs. general) experimental design was adopted, and the dependent variables were the individual’s scores of hostile attribution and aggressive intention. First, all participants completed the Emotional State Self-Rating scale as the pre-test, followed by the anger-inducing situation (the experimental group) and the general situation (the control group); the Emotional State Self-Rating scale and measures of hostile attribution and aggressive intention were administered as the post-test assessment. The pre-test, experimental and control situation, and post-test were all conducted on the same day. After the experiment, the purpose of the study was explained to the participants for reassuring them.
2.4 Results
First, the validity of the provoked anger manipulation was tested. The paired sample t-test revealed that the post-test (M=3.71, SD=1.68) scores for anger were significantly higher than those in the pre-test (M=1.58, SD=0.97; t(23)=-7.47, p<0.001, d=1.39) in the experimental group, while the pre-test (M=1.70, SD=1.26) and the post-test (M=1.52, SD=0.99) scores for anger showed no significant difference (t(22)=0.30, p=0.730) in the control group. In addition, there was no significant difference between the experimental group and the control group in the pre-test scores for anger (t(45)=0.34, p=0.730), which indicated that the anger-inducing manipulation was effective.
Subsequently, hostile attribution and aggressive intention were used as dependent variables in the analysis of variance by a 2 (sex: male or female) × 2 (situation type: provoked vs. general) between-group design. The results showed that for hostile attribution, the main effect of the situation type was significant (F(1, 43)=14.18, p<0.001, η2p=0.251), and the experimental group had a stronger degree of hostile attribution than the control group; the main sex effect (F(1, 43)=0.16, p=0.690) and the interaction (F(1, 43)=1.25, p=0.270) were not significant. For aggressive intention, situation type (F(1, 43)=1.34, p=0.250), sex (F(1, 43)=2.54, p=0.120), and the interaction (F(1, 43)=0.04, p=0.840) were not significant.
2.5 Discussion
The pilot experiment found that individuals in a state of anger had a strong hostile attribution in the subsequent ambiguous situation. This showed that anger affected the individual’s subsequent cognitive processing of the situation, which provided the basis for establishing the occurrence of TDA. Previous studies on hostile attribution and aggressive intention show that greater hostile attribution may lead to stronger aggressive behaviors [46,47]. However, the pilot experiment found no significant difference in aggressive intention between the experimental and control groups.
In light of these results, we speculated that, since the provocative situation from the pilot experiment and the subsequent triggering situation adopted the method of recall and imagination, perhaps participants did not experience them as they would have if these had been real situations. Further, the pilot experiment inquired participants’ aggressive intentions directly. However, in most cultural backgrounds, aggressive intention and behavior are not socially approved or desirable; consequently, participants were likely to hide aggressive intentions. Therefore, with Experiments 1 and 2, participants were experienced a provocative and a triggering situation firsthand and a more effective way to measure aggression was chosen.
3 Experiment 1: Kicking the barking dog effect—the roles of anger and hostile attribution
3.1 Participants
A total of 90 undergraduate students (38 males and 52 females) were randomly selected. Of these, five either did not complete the experiment or guessed its purpose and were, therefore, eliminated. The final number of participants was 85 (35 males and 50 females); the age range was 18–25 years (average age=19.36 [SD=1.30]).
3.2 Materials
Anger: The same as the pilot experiment.
Hostile attribution: The Hostile Attribution Bias Scale by Topalli and O’Neal was used [48], with a total of five items, such as “Imagine you are walking through the school corridor and two classmates are coming toward you. When you pass them, they look at you, whisper to each other, and laugh. Please answer: why do these two classmates laugh when they pass by you?” A seven-point scoring was adopted, from 1 = “completely inconsistent” to 7 = “completely consistent”. A higher score indicated a stronger hostile attribution. The internal consistency coefficient of the scale was 0.88 in this study.
Aggression: We adopted Reijntjes et al.’s idea that the best way to measure the individual’s aggression toward others was by determining their opinion about the level of reward that should be received by others [8]. The chosen reward level becomes a measure of their aggression. There were seven grades, from the least to the most rewarding, and a lower reward level represented stronger aggression. Further details regarding this measure can be found in the Supplementary Information.
3.3 Experimental design
A 2 (provocation: yes, or no) × 2 (trigger: yes, or no) between-group design was adopted, and the dependent variables were anger, hostile attribution, and the score of aggression. Here, anger refers to the change in the amount of anger between pre- and post-test, which is collectively referred to as “provocative emotion” for the convenience of the reader (the same below). Participants were assigned to four conditions: the provocative and triggering group (20 participants), the provocative and non-triggering group (18 participants), the non-provocative and triggering group (21 participants), and the non-provocative and non-triggering group (26 participants).
3.4 Situation manipulation
According to the classic experimental paradigm of TDA, participants were provided different types of feedback to manipulate the previous provocative situation and the subsequent triggering situation [3,17].
Provocative situation: Participants were allowed to solve a relatively difficult problem within the specified time, following which the experimental assistant A offered them feedback. In the provocative situation, the feedback the participants received was “The answer you wrote is too groundless! I thought the people who came to participate in the experiment were at least on the same level...but your answer...ho ho...” In the non-provocative situation, the feedback was “The total score is 10 and you got 6.7 points, which is above the average level.”
Triggering situation: As the surface task, the participants were asked to list as many qualities an astronaut has as they could think of, in a limited space of time, and explain their reasons. Experimental assistant B scored the answers in terms of creativity, quality, effort, diversity, and rationality. Each aspect was scored from 1 to 7. The higher the score, the better the aspect was considered to be. In the triggering situation, the participants scored 1, 2, 3, 1, 3 in each aspect and 2 as the total score, and the feedback provided was “In my opinion, the completion is not good. I think that, as a person who has the ability to think independently, you should perform better.” In the non-triggering situation, the participants’ corresponding scores were 6, 5, 6, 5, 5 for each aspect and 5 as the total score, and they would receive the following feedback: “It’s okay to complete it in a limited time.”
3.5 Procedure
First, the participants were informed that this study was on problem-solving abilities and that they needed to fill in the basic information and emotional pre-test questionnaires. Second, the participants and experimental assistant A collaborated to solve the first problem. After solving the problem, the participants received feedback from experimental assistant A, depending on which situation they had been assigned to. Since the feedback was computerized, the participants could not attack experimental assistant A after receiving such feedback. After receiving the feedback, the participants completed the emotional post-test. Later, the participants and experimental assistant B cooperated to solve another problem, after which they received feedback from experimental assistant B, depending on which situation they had been assigned to. After receiving the feedback, the participants would complete the measurement of hostile attribution toward experimental assistant B and determine the reward level that experimental assistant B should receive (used as the measurement of aggression). Finally, the experimenter asked the participants whether they had guessed the real purpose of the experiment, explained the content of the experiment, and soothed the participants’ emotions by psychological counseling (Figure 1).
3.6 Results
First, the validity of the provoked anger manipulation was tested. The paired sample t-test found that the post-test scores for anger (M=3.58, SD=1.64) were significantly stronger than the pre-test (M=1.05, SD=0.32; t(37)=-9.59, p<0.001, d=1.64) in the provocative situation group. There was no significant difference between the pre-test (M=1.06, SD=0.32) and the post-test (M=1.15, SD=0.42) scores for anger in the non-provocative situation group (t(46)=-1.66, p=0.100). Moreover, there was no significant difference between the two groups in the anger pre-test (t(83)=0.16, p=0.870), indicating that the method through which the anger was provoked in the experiment was effective.
3.6.1 Differences of hostile attribution and aggression in different situations
The results of variance analysis are shown in Table 1.
Table 1. Participants’ hostile attribution and aggression in different types of situation (M±SD)
|
Situation Type
|
Hostile Attribution
|
Aggression
|
No Provocation
|
no trigger (n=26)
|
9.77±3.72
|
2.19±0.90
|
trigger (n=21)
|
10.76±4.10
|
2.38±1.16
|
Provocation
|
no trigger (n=18)
|
11.44±3.18
|
2.00±1.03
|
trigger (n=20)
|
21.10±4.81
|
4.20±1.01
|
For hostile attribution, the main effect of the provocative situation was significant (F(1, 81)=47.12, p<0.001, η2p=0.371), and hostile attribution in the provocative situation was significantly higher than that in the non-provocative situation. The triggering situation had a significant main effect (F(1, 81)=37.02, p<0.001, η2p=0.313), and it was significantly higher than in the non-triggering situation; the interaction was significant (F(1, 81)=24.50, p<0.001, η2p=0.230). A simple effect analysis found that there was a significant difference (p<0.001) in hostile attribution between the presence and absence of trigger in the provocative situation; thus, participants in the triggering situation produced stronger hostile attributions. Similarly, in the triggering situation, the difference in hostile attribution between the presence and absence of provocation was significant (p<0.001); thus, participants in the provocative situation produced stronger hostile attributions. In the non-provocative situation (p<0.05) and non-triggering situation (p=0.180), there was no significant difference (see Figure 2a). This indicates that the participants would show stronger hostile attribution when the provocative and triggering situations were simultaneous.
Regarding aggression, the main effect of the provocative situation was significant (F(1, 81)=13.29, p<0.001, η2p=0.142), and aggression in the provocative situation was significantly higher than that in the non-provocative situation. The main effect of the triggering situation was significant (F(1, 81)=28.64, p<0.001, η2p=0.261); the aggression in the triggering situation was significantly higher than that in the non-triggering situation. The interaction was significant (F(1, 81)=20.31, p<0.001, η2p=0.200). A simple effect analysis revealed that there was a significant difference (p<0.001) in aggression between the presence and absence of trigger in the provocative situation, and the participants in the triggering situation displayed stronger aggression (see Figure 2b). In the triggering situation, there was a significant difference (p<0.001) in aggression between the presence and absence of provocation, and the participants in the provocative situation showed stronger aggression. In the non-provocative (p=0.530) and non-triggering situation (p=0.540), there was no significant difference. This indicates that the participants would show the strongest aggression when the provocative situation and the triggering situation existed simultaneously.
3.6.2 The mediating role of hostile attribution and the moderating role of the triggering situation
In order to further explore the relationship between anger, hostile attribution, and aggression, a correlation analysis was conducted. The results showed that there was a significant positive correlation between the three variables (p<0.01), which also provided the possibility for subsequent analysis. To further explore the generation process of the TDA, the bootstrap method was conducted using anger as the independent variable, hostile attribution as the mediating variable, and aggression as the dependent variable. The results showed that the path of “anger → hostile attribution → aggression” was significant, with 95% CI [0.21, 0.64], excluding 0. The path of “anger → aggression” was not significant, with 95% CI [-0.15, 0.24], including 0. Therefore, hostile attribution played a complete mediating role between anger and aggression.
Since in this experiment the attack refers to TDA, further analysis of the possible role of the triggering situation is warranted. Because the triggering situation was a categorical variable (trigger or no trigger), it was converted into a dummy variable (trigger=1, no trigger=0). Subsequently, the variables were standardized to avoid multicollinearity and the regression analysis method was adopted to test the moderating effect [49]. First, the anger and triggering situation were included in the regression equation. Second, their interaction terms were also included in the regression equation. If the interaction term significantly predicts the dependent variable, it indicates a significant moderating effect between the two variables. The results showed that both anger (β=0.36, p<0.001) and the triggering situation (β=0.37, p<0.001) can significantly predict hostile attribution. Further, the interaction term between anger and the triggering situation was significant (β=0.36, p<0.001), indicating that the triggering situation played a moderating role in the influence of anger on hostile attribution. In order to further analyze the moderating effect, a single slope analysis was performed to examine the effect of anger on hostile attribution, when the triggering situation was plus or minus one standard deviation (see Figure 3). When there was a highly triggering situation, the anger significantly predicted hostile attribution positively (bsimple=0.72, SE=0.09, p<0.001). When there was a low triggering situation that was not triggered, the change in anger did not significantly predict hostile attribution (bsimple=0.001, SE=0.13, p=0.970). This shows that when there was a trigger, the individual’s hostile attribution to the trigger significantly increased with the increase in anger, but when there was no trigger, the change in anger had no significant effect on hostile attribution.
3.7 Discussion
Experiment 1 comprehensively investigated the relationship between the provocative situation and the provoked emotional state, the triggering situation and the individual’s hostile attribution to it, and aggression under the individual framework to explore the generating process of TDA. As far as the interaction between provocative situation and triggering situation is concerned, for hostile attribution, this interaction was significant, which shows that the individual would produce strong hostile attribution to the trigger when the provocative and the triggering situation existed simultaneously. For the intensity of the attack, the previous provocative situation and the subsequent triggering situation also interacted with each other, which means that only when the provocative and triggering situation existed simultaneously, the individual would show TDA. There was a consistent response pattern between the provocative and triggering situations, on the one hand, which shows that hostile attribution can significantly predict aggressive behavior [47,50]. On the other hand, it also reflects the importance of the interconnection between the two types of situations. The mediating analysis revealed that hostile attribution played a complete mediating role in the influence of anger on aggressive behavior. This further verified the influence of anger on hostile attribution found in the pilot experiment, and the fact that the TDA occurred because the provocative situation incited anger, made the individual produce stronger hostile attribution to the trigger in the triggering event under the influence of this anger, and led to aggressive behavior toward the trigger.
4 Experiment 2: The moderating role of the trigger identity on TDA
4.1 Participants
A total of 85 undergraduate students (32 males and 53 females) studying at the same university were randomly selected. Of these, three guessed the intention of the experiment and, thus, were invalidated. The final number of participants was 82 (30 males and 52 females); and the age range was 18–22 years old (average age=19.49 years [SD=0.95]).
4.2 Materials
The measurement of anger, hostile attribution, and aggression were the same as in Experiment 1. The internal consistency coefficient for the Emotional State Self-Rating scale and the Hostile Attribution Bias scale were 0.84 and 0.89, respectively, in this study.
Group identity: Five items from the Group Identity Scale by Yzerbyt et al. [51] was used, for example, “I am a member of our group,” and “I have a very close relationship with the group members.” A seven-point scoring system was adopted, ranging from 1 = “completely disagree” to 7 = “completely agree.” The internal consistency coefficient of the scale was 0.71 in this study.
4.3 Experimental design
Experiment 2 used a 2 (trigger: yes, no) × 2 (trigger identity: in-group or out-group) between-group design, and the dependent variables were anger, hostile attribution, and the score of aggression.
4.4Situation manipulation
Group formation: Using the minimal group paradigm to manipulate group formation [52], the experimenter presented the works of painter A and painter B (a total of 28 pairs) to the participants at the same time, and let the participants select their favorites from each pair of works. Finally, the participants were divided into groups according to the painter they had preferred [53]. The experimenter asked the participants to complete a false personality questionnaire and informed them that individuals with similar results would be included into the same group.
Provocative situation, triggering situation: The same as Experiment 1.
Further details can be found in the Supplementary Information.
4.5 Procedure
First, the experimenter informed the participants that this was a personality test, asked them to select one of the works from each pair of works, and administered a false personality questionnaire. The experiment was conducted in two groups—A and B (some of the group members were fake participants). Before the formal experiment, the experimenter arranged for the members of the two groups to meet with each other briefly, to make group B believe that the experiment was legitimate. The communication content for the experiment was decided in advance, and the Anger Self-Rating scale and the Group Identity Scale were completed. Second, the same method from Experiment 1 was used to operate the provocative situation (all participants were provoked), induce the participants’ anger, and all the triggers were the members of out-group A. The triggers for the members of Group B came from members of the out-group (group A) and other members of the in-group (group B). Finally, the participants completed the measurement of hostile attribution and the level of reward that the trigger should receive. After the experiment, the participants were asked whether they had guessed the purpose of the experiment. The experimenter explained the content of the experiment and soothed the participants’ emotions by psychological counseling.
4.6 Results and Analysis
4.6.1 Effectiveness test of group formation and anger manipulation
Based on the standard of Yzerbyt et al. [51], the “4 (neutral)” scoring of the Group Identity scale was used as the reference value. When the score is greater than “4,” the stronger the in-group identity is. Therefore, the difference between the scores of in-group identity and “4” was compared. The results showed that the participants’ identity to the in-group (M=5.31, SD=0.77) was significantly greater than “4” (t(80)=15.40, p<0.001, d=1.70), which indicates that the in-group and the out-group were formed through the minimal group paradigm. The participants’ anger after being provoked (M=3.15, SD=1.64) was significantly greater than before (M=1.04, SD=0.19; t(81)=-11.81, p<0.001, d=1.29), which indicates that the induction of anger was effective in the experiment.
4.6.2 Comparison of the differences between participants’ hostile attribution and the intensity of the attack under different experimental operations
The results of variance analysis are shown in Table 2.
Table 2. Anger, Hostile attribution, and TDA (M±SD)
Situation type
|
Trigger Identity
|
Hostile Attribution
|
TDA
|
No Triggering Situation
|
in-group (n=21)
|
9.05±3.01
|
2.14±0.79
|
out-group (n=21)
|
9.29±3.89
|
2.24±1.14
|
Triggering Situation
|
in-group (n=18)
|
12.72±6.14
|
2.61±1.42
|
out-group (n=22)
|
20.23±5.84
|
4.68±1.29
|
For hostile attribution, the main effect of the triggering situation was significant (F(1, 78)=46.13, p<0.001, η2p=0.372), and the triggering situation was significantly higher than the non-triggering situation. The main effect of trigger identity was significant (F(1, 78)=12.95, p<0.001, η2p=0.140), and the out-group was significantly higher than the in-group. The interaction was significant (F(1, 78)=11.40, p<0.001, η2p=0.133). The simple effect analysis found that there was no significant difference (p=0.850) between the in-group and the out-group in the non-triggering situation, and the hostile attribution toward the out-group members was significantly higher than that of in-group members (p<0.001). For in-group members, there was a significant difference between the triggering and the non-triggering situations (p<0.05). The hostile attribution in the triggering situation was significantly greater than that in the non-triggering situation. For the out-group, the hostile attribution in the triggering situation was also significantly greater than that in the non-triggering situation (p<0.001, see Figure 4a). This shows that, regardless of whether the trigger was an in-group member or an out-group member, the hostile attribution in the triggering situation was greater than that in the non-triggering situation, but the hostile attribution was stronger when the trigger was an out-group member.
Regarding aggression, the main effect of the triggering situation was significant (F(1, 78)=33.90, p<0.001, η2p=0.301), and the aggression in the triggering situation was significantly higher than that in the non-triggering situation. The main effect of trigger identity was significant (F(1, 78)=18.75, p<0.001, η2p=0.192), and the out-group was significantly higher than the in-group. The interaction was significant (F(1, 78)=15.60, p<0.001, η2p=0.172). The simple effect analysis found that there was no significant difference between the in-group and the out-group in the non-triggering situation (p=0.790). The participants’ aggression toward out-group members was significantly higher than toward in-group members in the triggering situation (p<0.001). For in-group members, there was no significant difference between the triggering and the non-triggering situations (p=0.200). For out-group members, the aggression in the triggering situation was significantly greater than that in the non-triggering situation (p<0.001; see Figure 4b). This shows that when there was a triggering situation, the participants would be more aggressive when the trigger was an out-group member.
4.6.3 The mediating role of hostile attribution and the moderating role of triggering situation
Similar to the analysis in Section 3.6.2, there was a significant positive correlation between anger, hostile attribution, and aggression (p<0.01). The path of “anger → hostile attribution → aggression” was significant, with 95% CI [0.09, 0.54], excluding 0. The path of “anger → aggression” was not significant, with 95% CI [-0.06, 0.27], including 0. Therefore, hostile attribution played a complete mediating role between anger and aggression. In addition, anger (β=0.25, p<0.01) and the triggering situation (β=0.52, p<0.001) can significantly predict hostile attribution. The interaction between anger and the triggering situation was significant (β=0.28, p<0.01), indicating that the latter played a moderating role in the influence of the former on hostile attribution. In order to further analyze the moderating effect, a single slope analysis was performed to examine the effect of anger on hostile attribution, when the triggering situation was plus or minus one standard deviation (see Figure 5). The results showed that, in case of a highly triggering situation, the anger significantly predicted hostile attribution positively (bsimple=0.53, SE=0.14, p<0.001); when there was a low triggering situation that was not triggered, the anger did not significantly predict hostile attribution (bsimple=0.03, SE=0.11, p=0.762). This shows that when there was a trigger, the individual’s hostile attribution to the trigger significantly increased with the increase in anger, while when there was no trigger, anger had no significant effect on hostile attribution.
4.6.4 The moderating effect of the trigger identity
To further explore the influence of the trigger identity, the above model was tested with a moderated mediation effect. First, the trigger identity was converted into dummy variables, and all variables were standardized to avoid multicollinearity. According to the recommendations of Wen and Ye [54], testing the adjusted mediation model needs to test the parameters of the three regression equations. The results of the adjusted mediation model test in this study are shown in Table 3. According to Experiment 1, only in the triggering situation, anger affected the subsequent hostile attribution of the individual to triggering attribution. Therefore, only the triggering situation was considered here. The predictor variables were standardized in each equation and the variance expansion factor of all predictors was lower than 1; hence, there was no multicollinearity concern. Among them, the anger in equation 1 significantly positively predicted TDA, and the interaction between anger and trigger identity significantly predicted TDA. In equations 2 and 3, the interaction between anger and trigger identity significantly predicted hostile attribution and TDA, and hostile attribution significantly positively predicted TDA. This shows that anger, hostile attribution, trigger identity, and aggression constitute a moderated mediation model. Hostile attribution mediated the relationship between anger and TDA, and trigger identity moderated the first half path and the direct path of the mediating process of “anger → hostile attribution → TDA.”
Table 3. Moderated mediation model test
Equation 1(Y: TDA)
|
Equation 2(M: hostile attribution)
|
Equation 3(Y: TDA)
|
|
B
|
SE
|
β
|
95%CI
|
B
|
SE
|
β
|
95%CI
|
B
|
SE
|
β
|
95%CI
|
X
|
0.23
|
0.10
|
0.23*
|
[0.03, 0.43]
|
0.26
|
0.10
|
0.26*
|
[0.05, 0.46]
|
0.08
|
0.09
|
0.08*
|
[0.09, 0.25]
|
Ua
|
0.35
|
0.10
|
0.35**
|
[0.15, 0.54]
|
0.29
|
0.10
|
0.29**
|
[0.08, 0.49]
|
0.19
|
0.09
|
0.19*
|
[0.02, 0.36]
|
X×U
|
0.22
|
0.10
|
0.22*
|
[0.02, 0.42]
|
0.15
|
0.11
|
0.15*
|
[0.05, 0.36]
|
0.13
|
0.09
|
0.13*
|
[0.02, 4.23]
|
M
|
|
|
|
|
|
|
|
|
0.55
|
0.10
|
0.55***
|
[0.36, 0.74]
|
M×U
|
|
|
|
|
|
|
|
|
0.04
|
0.10
|
0.03
|
[-0.16, 0.23]
|
R2
|
|
|
0.22
|
|
|
|
0.17
|
|
|
|
0.47
|
|
F
|
|
|
8.77***
|
|
|
|
6.44** |
|
|
|
15.47*** |
|
NOTE: X=anger, U=trigger identity, M=hostile attribution, Y=TDA; trigger identity is a dummy variable, in-group=1, out-group=2, and the 95% CI of all predictor variables were obtained by Bootstrap.
In order to further analyze the moderating role of the trigger identity using the trigger identity plus or minus one standard deviation, anger performed a simple slope analysis on the effect value of TDA, and a simple effect diagram was drawn (see Fig. s1 in the Supplementary Information). The results showed that when the trigger was an out-group member, the anger significantly positively predicted TDA (bsimple=0.44, SE=0.13, p<0.001). When the trigger was an in-group member, anger did not significantly predict TDA (bsimple=0.01, SE=0.16, p=0.350). This shows that for the out-group trigger, as the individual’s anger increased, the TDA also increased. For the in-group trigger, there was no significant difference in the performance of anger and TDA.
4.7 Discussion
Experiment 2 explored the internal process of TDA and the role of trigger identity in the group context. The mediating effect test revealed that hostile attribution played a completely mediating role in the process of influence of anger on TDA, and the triggering situation played a moderating role in the process of anger affecting hostile attribution. This is consistent with the findings of Experiment 1 and further validates the role of anger and hostile attribution in TDA. For hostile attribution, the interaction between the trigger identity and the triggering situation was significant. Regardless of the trigger being an in-group or an out-group member, the individual would show stronger hostile attribution under the triggering situation. When the trigger was an out-group member, the individual’s hostile attribution would be more intense. For aggression, the interaction between the trigger identity and the triggering situation was significant, and the trigger would only be attacked if it was an out-group member. In Experiment 2, unlike in Experiment 1, the hostile attribution and aggression were not synchronous in performance, which may be due to the influence of trigger identity. The moderated mediating effect test revealed that hostile attribution partly mediated the relationship between anger and TDA, and trigger identity mediated the first half path and direct path of the mediating process of “anger → hostile attribution → TDA.” In addition, the simple slope test found that for the out-group trigger, as the individual’s anger increased, the TDA also increased. For the in-group trigger, there was no significant difference in the performance of anger and TDA.