The Role of Self-Control in Mediating the Relationship Between Emotional Maturity and Aggression Stimulus on Aggressive Behavior in Brimob Personnel Serving in Region X

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Surabaya— Emotional Maturity and Self-Control Help Reduce Aggressive Behavior in Brimob Personnel, Indonesian Study Finds. The research conducted by A. Muhammad Fauzan Nofriansyah Putra, Dyan Evita Santi, and Suryanto from Universitas 17 Agustus 1945 Surabaya, published in January 2026 in the International Journal of Integrated Science and Technology (IJIST).

The research conducted by A. Muhammad Fauzan Nofriansyah Putra, Dyan Evita Santi, and Suryanto found that one of the key factors in reducing the aggressiveness of Brimob personnel is not only discipline, but strong self-control built from emotional maturity.

The study examined the relationship between emotional maturity and aggression stimulus on the aggressive behavior of Brimob (Mobile Brigade Corps) personnel serving in Region X. These findings are important because they provide a new direction for law enforcement institutions: aggression prevention can be carried out more effectively through strengthening internal psychological factors, not solely through punishment and sanctions.

The research used the General Aggression Model (GAM) as a theoretical framework, which views aggression as a product of interaction between personal factors and situational factors.

1. Emotional maturity reduces aggressive behavior

The results show a negative and significant relationship between emotional maturity and aggressive behavior:

β = −0.203
p < 0.001

In simple terms: the more emotionally mature a Brimob officer is, the less likely they are to show aggressive behavior.

2. Aggression stimulus does NOT directly increase aggressive behavior

Interestingly, aggression stimulus showed no significant direct effect on aggressive behavior:

β = 0.015
p = 0.691

This means provocation or situational pressure alone does not automatically lead to aggression in Brimob personnel. The researchers interpret this as a sign that Brimob officers may have internal filters such as training, discipline, and psychological preparedness.

3. Emotional maturity strongly increases self-control

Emotional maturity turned out to be a very strong predictor of self-control:

β = 0.814
p < 0.001

This is one of the strongest effects in the entire model. The researchers conclude that emotional maturity builds the internal capacity needed to regulate behavior under stress.

4. Aggression stimulus does NOT significantly reduce self-control

Aggression stimulus also did not significantly affect self-control:

β = −0.073
p = 0.073

This suggests that self-control among Brimob personnel is more strongly influenced by internal traits (like emotional maturity) rather than situational pressure alone.

5. Self-control strongly reduces aggressive behavior

Self-control showed a major protective effect:

β = −0.649
p < 0.001

Meaning: Brimob personnel with strong self-control are far less likely to act aggressively, even in difficult operational contexts.

Mediation Results: Self-Control Is the Key Bridge

The most important insight from this study is that self-control mediates the relationship between emotional maturity and aggressive behavior.

Emotional maturity → self-control → aggressive behavior

This indirect pathway was significant:

β = −0.528
p < 0.001

The authors emphasize that most of emotional maturity’s effect on aggression happens through improving self-control. This is categorized as partial mediation, meaning emotional maturity also has a direct effect, but the indirect effect is stronger.

Aggression stimulus → self-control → aggressive behavior

This pathway was not significant:

β = 0.047
p = 0.076

So self-control does not act as a mediator for aggression stimulus. In other words, provocation does not reliably reduce self-control in this group.

Why Aggression Stimulus Did Not Show Strong Effects

One of the most striking results is that aggression stimulus was not a strong predictor of either self-control or aggressive behavior. The researchers suggest a context-based explanation:

Brimob personnel are trained and habituated to face aggression stimulus as part of the job. Threats, provocation, and crowd hostility are expected occupational risks, not personal attacks. Therefore, they may not trigger aggression as easily as in the general population.

This finding also suggests that aggression is not simply “triggered” by the environment, but shaped by internal psychological readiness.

Practical Impact: What This Means for Polri and Brimob Training

The study offers a clear message for police institutions:

Strengthening emotional maturity and self-control may be more effective than relying only on punishment.

The authors recommend integrating psychological development programs into Brimob education and operational training, including:

emotional management training
stress regulation programs
self-control strengthening exercises
periodic mental mentoring
supportive leadership climate and supervision

They also suggest leaders should promote psychological well-being through:

task rotation systems
internal social support
non-repressive psychological evaluation

These strategies may reduce aggressive behavior more sustainably than disciplinary sanctions alone.

Author Profiles

· Muhammad Fauzan Nofriansyah Putra : 17 August 1945 University, Surabaya
· Dyan Evita Santi : 17 August 1945 University, Surabaya
· Suryanto : 17 August 1945 University, Surabaya

Research Source

Muhammad Fauzan Nofriansyah Putra, Dyan Evita Santi, Suryanto
The Role of Self-Control in Mediating the Relationship Between Emotional Maturity and Aggression Stimulus on Aggressive Behavior in Brimob Personnel Serving in Region X
International Journal of Integrated Science and Technology (IJIST) Vol. 4 No. 1 (Januari 2026), hlm. 50–67
DOI:https://doi.org/10.59890/ijist.v4i1.264

URL: https://ntlmultitechpublisher.my.id/index.php/ijist