Public Administration April 1, 2026 5 min read

NCS Interpersonal Skills: Teamwork, Conflict, and Leadership at Work

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Oiyo Contributor

Interpersonal skills (대인관계능력) measures your ability to work effectively with others — in teams, in conflict, in leadership, and in customer-facing situations. For public enterprise roles, where collaboration across departments and service to the public are central, this competency is closely tied to real job performance.

Sub-Competencies

Sub-competencyKoreanFocus
Teamwork팀워크능력Contributing to and supporting team goals
Leadership리더십능력Guiding and influencing others
Conflict management갈등관리능력Resolving disagreements constructively
Negotiation협상능력Reaching mutually acceptable agreements
Customer service고객서비스능력Meeting external and internal customer needs

1. Team Development (Tuckman Model)

Teams move through predictable stages:

StageCharacteristicsLeader’s role
FormingPolite, dependent on leader, unclear rolesDirect clearly, set expectations
StormingConflict, resistance, power strugglesCoach, mediate, keep focus
NormingCohesion, shared norms, growing trustFacilitate, step back
PerformingHigh productivity, collaborative problem-solvingDelegate, support
AdjourningProject end, closureRecognize contribution, debrief

Key exam insight: A team experiencing conflict is likely in the Storming stage — this is normal and not a sign of failure.


2. Leadership Styles

Situational Leadership (Hersey & Blanchard)

Leadership style should match the development level of the follower (Readiness = competence + commitment).

Readiness LevelStyleCharacteristics
R1 (Low comp, High commitment)TellingHigh task, low relationship
R2 (Low-mid comp, Low commitment)SellingHigh task, high relationship
R3 (Moderate comp, Variable commitment)ParticipatingLow task, high relationship
R4 (High comp, High commitment)DelegatingLow task, low relationship

Transformational vs Transactional Leadership

TypeFocusMethod
TransactionalExchange — reward for performanceContingent reward, management by exception
TransformationalInspiration — elevate followers’ motivationIdealized influence, inspirational motivation, intellectual stimulation, individualized consideration

4 I’s of Transformational Leadership: Idealized Influence, Inspirational Motivation, Intellectual Stimulation, Individualized Consideration.

Servant Leadership

Leader’s primary role is to serve others — remove obstacles, develop people, ensure team has what it needs to perform.


3. Conflict Management (Thomas-Kilmann)

Five styles on two axes: Assertiveness (own concerns) × Cooperativeness (others’ concerns).

StyleAssertive?Cooperative?Use when
CompetingHighLowEmergency; you are clearly right
AccommodatingLowHighIssue more important to them; preserving relationship
AvoidingLowLowIssue trivial; emotions too high
CompromisingMediumMediumTemporary solution; equal power
CollaboratingHighHighComplex, both sides’ needs matter

Collaborating is the preferred long-term style for workplace conflict.

Sources of Workplace Conflict

  • Resource scarcity (budget, headcount, equipment)
  • Goal incompatibility between departments
  • Role ambiguity — unclear responsibilities
  • Communication failures
  • Personality and value differences

4. Negotiation (Harvard Principled Negotiation)

Fisher & Ury’s four principles:

PrincipleMeaning
Separate people from problemsAddress behavior/interests, not personalities
Focus on interests, not positionsUnderstand why, not just what they want
Invent options for mutual gainBrainstorm creative solutions before evaluating
Use objective criteriaBase agreements on standards, not power

BATNA (Best Alternative to Negotiated Agreement)

The best outcome you can achieve if negotiation fails. Knowing your BATNA gives you a realistic walk-away point.

Strong BATNA = more negotiating power. Improve your BATNA before entering a negotiation.

Negotiation Tactics to Recognize

  • Anchoring: First offer establishes a reference point — counter by establishing your own anchor
  • Good cop/bad cop: One negotiator is reasonable, the other extreme — recognize as a team tactic
  • Deadline pressure: “This offer expires today” — often a tactic; test by asking for an extension

5. Customer Service (고객서비스능력)

Internal vs External Customers

External customers: People or organizations that purchase goods/services from the organization. Internal customers: Colleagues who receive your work output — the next person in the process chain.

Service Quality: SERVQUAL Model

DimensionDescription
ReliabilityAbility to deliver promised service accurately and consistently
AssuranceKnowledge and courtesy of staff; ability to inspire trust
TangiblesPhysical facilities, equipment, staff appearance
EmpathyIndividualized attention; understanding customer needs
ResponsivenessWillingness to help; prompt service

Handling Complaints

AHA Process (Acknowledge, Handle, Assure):

  1. Acknowledge: “I understand why you are frustrated…”
  2. Handle: Investigate and resolve the issue
  3. Assure: Confirm resolution and what will prevent recurrence

Recovery paradox: Customers whose complaints are resolved well often have higher satisfaction than those who never had a problem. Complaint handling is an opportunity.


6. Building Trust in Teams

Lencioni’s Five Dysfunctions (bottom to top of pyramid):

  1. Absence of trust → 2. Fear of conflict → 3. Lack of commitment → 4. Avoidance of accountability → 5. Inattention to results

Solution: Build trust first — through vulnerability, consistency, and follow-through.


Exam Checklist

  • Tuckman’s 5 team stages in order
  • Situational Leadership 4 styles matched to readiness levels
  • 4 I’s of Transformational Leadership
  • Thomas-Kilmann 5 conflict styles — when to use each
  • Harvard Negotiation 4 principles
  • BATNA definition
  • SERVQUAL 5 dimensions
  • Lencioni 5 dysfunctions
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