Interpersonal Communication

Defining Interpersonal Communication and Relationships

Interpersonal communication can be defined broadly by context (any interaction with at least two people that allows mutual opportunities for speaking and listening—strangers, salespeople, waitstaff included) or more narrowly as communication that occurs within an established interpersonal relationship.

Three elements define an interpersonal relationship: it involves two or more people; the people are interdependent (mutually dependent on and affecting each other); and they have interacted over an extended period, developing behaviors and patterns unique to that relationship (like inside jokes or private nicknames). A one-time interaction, such as ordering coffee from a barista, uses interpersonal communication but is not itself an interpersonal relationship—though it could become the start of one.

Why Interpersonal Relationships Matter

Psychologist William Schutz identified three basic interpersonal needs that are satisfied only through relationships with others:

• Inclusion — the need to be involved with others and to belong.
• Affection — the need to hold and receive fond or tender feelings.
• Control — the need to have influence over one's environment and interactions.

Relationships can be complementary (each person supplies something the other lacks, such as an introvert and an extrovert balancing each other) or symmetrical (participants mirror each other's traits or interests, such as two highly organized coworkers who hold each other accountable).

The Dark Side of Interpersonal Relationships

Not all aspects of interpersonal relationships are positive. Conflict is normal and can even be constructive when it clears the air—but it becomes dysfunctional when people avoid talking about problems, treat criticism as a personal attack, feel out of control during arguments, or "gunny-sack" (store up many grievances and unload them all at once).

Beyond conflict, scholars Brian Spitzberg and William Cupach describe other dark-side qualities: obsession, jealousy, gossip, codependency, and relational abuse (sexual, physical, emotional, or economic). Even generally healthy relationship behaviors—self-disclosure, affectionate communication, mutual influence—can become unhealthy if taken to an extreme.

Self-Disclosure in the Development of Relationships

Researchers distinguish self-disclosure (voluntary) from confession (forced or coerced) and revelation (unintentional). Communication privacy management (CPM) theory explains how people create and manage rules about when they will share private information and who else is allowed access to it once shared.

The Johari Window

The Johari window, developed by Joseph Luft and Harrington Ingham, models self-disclosure using four quadrants of information about a person:

As self-disclosure increases, the open area expands and the hidden area shrinks—this is one reason self-disclosure deepens relationships.

Why Self-Disclosure Matters

Self-disclosure is important for three reasons: it builds self-understanding (as reflected in the Johari window); it fosters a more positive attitude about ourselves and others, especially when sharing difficult experiences brings comfort and connection; and it is one of the primary ways relationships grow in depth—without it, relationships risk staying superficial.

Principles That Guide Appropriate Self-Disclosure

• Disclosure generally increases as relational intimacy increases—we do not share our life story with people we just met.
• Disclosure tends to be reciprocal—when someone opens up to us, we tend to open up in return (except within families, where reciprocity is often one-directional).
• Negative disclosure rises with intimacy, but positive disclosure flows from the earliest stages onward and does not necessarily keep increasing.
• Disclosure may be avoided for self-protection, to protect the relationship, due to a partner's unresponsiveness, or because of social appropriateness.
• Disclosure varies across cultures—for example, research shows American students tend to disclose more than Japanese students.
• Relational satisfaction and disclosure are curvilinearly related: satisfaction is lowest with no disclosure or excessive disclosure, and highest at moderate levels.

Friendship

Friendship contributes significantly to well-being, yet is often less culturally celebrated than romantic relationships. Young adolescents tend to base friendship on shared activities, while emerging adults base it more on self-disclosure. Communication scholar Bill Rawlins proposed a six-stage model of how friendships develop:

1. Role-limited interaction — polite, careful first encounters.
2. Friendly relations — discovering mutual interests or common ground.
3. Moving toward friendship — introducing more personal topics, making plans together.
4. Nascent friendship — thinking of each other as friends; developing private ways of interacting.
5. Stabilized friendship — feeling established in each other's lives.
6. Waning friendship — the relationship diminishes (not all friendships reach this stage).

Technology has reshaped friendship formation: social platforms let people form and maintain friendships online, sometimes motivated by a sense of safety in not meeting face-to-face, the perceived excitement of online connection, or the ability to present a more idealized version of oneself.

Cross-Cultural Relationships

Cross-cultural friendships and romantic relationships form and function through many of the same processes as same-culture relationships, but people often feel more tentative initiating them, fearing language barriers or unintentional missteps. Useful strategies include having meaningful personal interaction beyond "safe" small talk, maintaining equal status between participants, building interdependence, and respecting individual differences rather than assuming disagreements are cultural rather than personal.

Initiating, Maintaining, and Terminating Relationships

Motivations for Initiating Relationships

• Proximity — the location or distance between people; we tend to form relationships with people we regularly encounter (roommates, coworkers, classmates).
• Attractiveness — physical appeal, desirability as a collaborator, and perceived social value.
• Responsiveness — we are drawn to people who show genuine interest in us.
• Similarity — shared interests, ideology, or values.
• Complementarity — being drawn to people whose strengths offset our weaknesses.

Motivations for Maintaining Relationships

Once a relationship begins, people maintain it for different reasons than they used to start it—chiefly a desire for predictability/certainty about the partner, and a growing focus on empathic, caring involvement rather than surface traits like spontaneity. Long-term satisfied couples are more likely to use "we"/"us" language than "I"/"me" language.

Motivations for Terminating Relationships

Relationships end for many reasons, including:

• Hurtful messages and events — accusations, harsh evaluations, and painful disclosures, as well as events like infidelity, jealousy, betrayal of trust, or lack of emotional support.
• Deceptive communication — deliberately making someone believe something untrue; repeated or serious deception erodes trust and can end a relationship.
• Aggressiveness — standing up for your own rights/needs at the expense of the other person, which threatens a couple's sense of safety.
• Argumentativeness — distinct from aggressiveness; arguing about ideas is not inherently harmful and some people view it as a normal, even enjoyable, social activity.

Defensiveness and Supportiveness (Gibb’s Categories)

Communication researcher Jack Gibb identified paired categories of behavior that either build defensiveness or reduce it and build trust: