science

Interdependence theory

Interdependence theory is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Interdependence theory rather than just read about it. In short: Interdependence theory is a social exchange theory developed in social psychology that examines how interpersonal relationships are defined through interpersonal interdependence, which is "the process by which interacting people influence one another's experiences".p. 65 Originally proposed by Harold H. Kelley and John Thibaut in 1959, the theory provides a conceptual framework for analyzing the structure of interpe…

Key takeaways

Interdependence theory belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Interdependence theory to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Interdependence theory from memory before moving on to harder problems.

Reference excerpt

Interdependence theory is a social exchange theory developed in social psychology that examines how interpersonal relationships are defined through interpersonal interdependence, which is "the process by which interacting people influence one another's experiences".p. 65 Originally proposed by Harold H. Kelley and John Thibaut in 1959, the theory provides a conceptual framework for analyzing the structure of interpersonal situations and how individuals' outcomes depend not only on their own actions but also on the actions of others. The most basic principle of the theory is encapsulated in the equation I = ƒ[A, B, S], which states that all interpersonal interactions (I) are a function (ƒ) of the given situation (S), plus the actions and characteristics of the individuals (A & B) in the interaction. This equation represents how people's behaviors, thoughts, and emotions in relationships are influenced by both situational structures and psychological processes. The theory's four basic assumptions are:

The Principle of Structure: Interpersonal situations have definable patterns of interdependence that shape interaction. The Principle of Transformation: People may transform a given situation according to their motivations, values, and broader relationship goals. The Principle of Interaction: Outcomes in relationships are determined by the mutual influence of both parties' actions. The Principle of Adaptation: Individuals develop behavioral patterns over time in response to recurring situations of interdependence.

Authors Interdependence theory was first introduced by Harold Kelley and John Thibaut in 1959 in their book, The Social Psychology of Groups. This book drew inspiration from social exchange theory and game theory, and provided key definitions and concepts instrumental to the development of the interdependence framework. In their second book, Interpersonal Relations: A Theory of Interdependence, the theory was completely formalized in 1978. Harold Kelley continued the development of Interdependence theory in 2003, with the book An Atlas of Interpersonal Situations. This book expanded on the previous work by adding two additional dimensions to the dimensions of interdependence, as well as by analyzing 21 specific situation types. In addition, the work of Kelly and Thibaut built on the work of Kurt Lewin, who first defined interdependence, and stated that ""The essence of a group is not the similarity or dissimilarity of its members, but their interdependence . . . A change in the state of any subpart changes the state of any other subpart . . . Every move of one member will, relatively speaking, deeply affect the other members, and the state of the group" (pp. 84–88).

Four basic assumptions of interdependence theory

Principle of structure (the situation) All interactions are set within the context of their given situation (known in Interdependence theory as structure). In order to best analyze this factor, Interdependence theory presents a taxonomy of situations that includes the six dimensions listed below. A key concept with the Principle of Structure is Affordance, or what the situation affords (makes possible) for the individuals within the interaction.

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Interdependence theory

Start with the simplest possible case. Write down what Interdependence theory claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Interdependence theory before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Interdependence theory ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Interdependence theory

In research: Interdependence theory appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Interdependence theory in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Interdependence theory is common in secondary-school and first-year university syllabi. It links to neighbouring topics Game theory, Interpersonal relationships, so understanding it makes those chapters shorter.
In everyday life: Look for Interdependence theory outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Interdependence theory in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Interdependence theory means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Interdependence theory out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Interdependence theory in simple terms?

Why does Interdependence theory matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Interdependence theory?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Interdependence theory.