Change Models & Frameworks

Force Field Analysis

Force Field Analysis is a diagnostic technique developed by Kurt Lewin that maps the driving forces pushing a situation toward change against the restraining forces holding it in place. Lewin saw the current state as a quasi-stationary equilibrium, so change requires shifting the balance, often more effectively by weakening restraints than by adding pressure.

Quick facts

Originator
Kurt Lewin
Year / source
Field theory (1930s–40s); "Frontiers in Group Dynamics" (1947); Field Theory in Social Science (1951)
Type
Diagnostic
Focus
Groups, teams and organizations
Elements
Driving forces · Restraining forces · Current equilibrium
Best for
Mapping what helps and hinders a change before planning actions
Exam relevance
APMG CM Foundation, Organizational Context & Approach (OA0101); Practitioner (OA0301)
Force Field AnalysisDriving forces: arrows pushing toward the desired state; length shows strength. Current state (equilibrium): the line where the opposing forces balance. Restraining forces: arrows pushing back toward the status quo; length shows strength. Shift the balance: weaken restraints or strengthen drivers so the line movesCurrent state (equilibrium)Driving forcesRestraining forces

Model at a glance

  1. Driving forces — arrows pushing toward the desired state; length shows strength
  2. Current state (equilibrium) — the line where the opposing forces balance
  3. Restraining forces — arrows pushing back toward the status quo; length shows strength
  4. Shift the balance — weaken restraints or strengthen drivers so the line moves

What are driving and restraining forces?

Driving forces push a situation toward the desired change. Restraining forces push back toward the current state.

Either kind can come from inside or outside the organization, and either can be rational or emotional:

  • Driving forces might include customer complaints, a regulatory deadline, a sponsor's commitment or staff frustration with workarounds.
  • Restraining forces might include fear of job loss, lack of skills, an incentive that rewards the old way, competing priorities or a system that does not yet support the new process.

The two lists are not mirror images. A restraining force is often a specific obstacle that can be removed, while a driving force is often a general pressure.

Force Field Analysis therefore makes both sides of a change visible in one picture, rather than focusing only on the case for change.

What is quasi-stationary equilibrium?

Lewin observed that many social situations, such as a team's output level or a group's working habits, stay roughly constant over time even though they are under pressure from many directions. He described them as quasi-stationary equilibria: the level fluctuates a little but stays where it is because the forces pushing up and the forces pushing down balance each other.

Two practical consequences follow:

  • To change the level, the balance must change. A one-off push may move things briefly, but the level returns once the push stops.
  • How you shift the balance matters. Adding driving forces tends to raise tension, because the restraining forces push back. Weakening restraining forces lets the level move with less conflict.

This is why Lewin's three-stage model starts with unfreezing.

Quasi-stationary equilibrium is therefore the idea that gives Force Field Analysis its purpose: it explains why stable situations resist change.

How do you run a Force Field Analysis step by step?

Harbourside Council wants its housing and benefits teams to share a single case record for each resident.

  1. Define the change. Write the current state and the target state at the top of the page, in concrete terms.
  2. List driving forces with the people affected: residents repeating their story, duplicated data entry, an audit finding.
  3. List restraining forces: separate data-sharing approvals, different team targets, worries about workload, an old case system.
  4. Score each force for strength (see the next section).
  5. Check the picture. Ask whether any force is missing, duplicated or really two forces.
  6. Choose actions. Start with the strongest restraining forces that the team can influence, then reinforce the drivers.
  7. Assign owners and revisit. Forces change as the work progresses, so repeat the analysis at key points.

At Harbourside, the team's first actions were a joint data-sharing agreement and a shared target, not more messages about the benefits.

Run this way, Force Field Analysis turns a debate about whether to change into a plan for what to change first.

How should you score the forces?

Scoring is a common practitioner addition; Lewin's own texts use no numeric scale. Teams usually rate each force from 1 (weak) to 5 (strong) and draw arrows of matching length.

ForceSideStrengthCan we influence it?
Residents repeat their storyDriving4Partly
Audit findingDriving3No
Separate data-sharing approvalsRestraining5Yes
Different team targetsRestraining4Yes
Old case systemRestraining3Later

Three cautions apply:

  • Scores are judgments. They prompt discussion; they are not measurements.
  • Totals do not decide. A higher driving total does not mean the change will succeed, because forces are not independent and do not simply add up.
  • Strength is not priority. A strong force the team cannot influence may matter less than a moderate one it can remove.

Force Field Analysis scoring therefore works best as a way to agree priorities, not as a calculation.

What are the limitations of Force Field Analysis?

The technique's strengths are its simplicity, its balance between support and resistance, and its focus on action.

Its limitations:

  • Subjective inputs. The forces and scores reflect the views of the people in the room. Dominant voices or a narrow group can skew the picture.
  • A snapshot. The analysis shows one moment; forces shift as soon as the change starts.
  • Forces interact. Removing one restraint can strengthen another, and the simple diagram does not show these links.
  • A thin version of Lewin's theory. Burnes and Cooke (2013) argue the workshop tool lacks the rigor of Lewin's field theory; Swanson and Creed (2014) add that forces shift and can reverse.
  • Resistance as an obstacle only. Some restraining forces carry useful information about flaws in the change itself.

Force Field Analysis is therefore best used as a structured conversation, repeated over time and checked against other evidence.

Force Field Analysis vs. Lewin's three-stage model: what is the difference?

Force Field AnalysisLewin's three-stage model
PurposeDiagnose the forces for and against a changeDescribe the sequence of a planned change
FormA balance of driving and restraining forcesThree stages: unfreeze, change, refreeze
Core ideaThe current state is a quasi-stationary equilibriumThe equilibrium must be disturbed, moved and stabilized
OutputA list of forces, scores and actionsA broad plan for each stage
When usedBefore and during unfreezing, and at reviewsAcross the whole life of the change

Both come from Lewin: Force Field Analysis explains why a situation is stable, and the three-stage model describes how to move it.

Exam focus

At Foundation level (OA0101) expect recall of the two kinds of force and comprehension of equilibrium: the current state is stable because opposing forces balance. Expect also why weakening restraining forces is often preferred to adding pressure. A common trap defines the forces as internal versus external, or reads equilibrium as the change being complete. Applying the analysis to a scenario belongs to Practitioner topic OA0301.

Practise this syllabus area →

FAQ

What is Force Field Analysis in simple terms?

Force Field Analysis is a way of listing everything that pushes a change forward and everything that holds it back, then judging how strong each force is. The current situation stays where it is because the two sides balance, so the analysis shows which forces to change to move it.

Who developed Force Field Analysis?

Kurt Lewin, the social psychologist who founded the study of group dynamics, developed Force Field Analysis as part of his field theory in the 1940s. It appears in his 1947 paper Frontiers in Group Dynamics and in the collection Field Theory in Social Science (1951).

Should you increase driving forces or reduce restraining forces?

Usually reduce restraining forces first. Adding pressure tends to provoke counter-pressure and raise tension, while removing an obstacle lets the situation move with less conflict. Driving forces still matter, and most plans do both, but the restraining side is often where the quickest progress lies.

How do you score a Force Field Analysis?

Teams usually rate each force from 1 (weak) to 5 (strong) and draw arrows of matching length. Also note whether the team can influence each force. Treat the scores as a prompt for discussion, not a measurement, and do not decide on the change by comparing totals.

What is the difference between Force Field Analysis and a SWOT analysis?

A SWOT analysis reviews an organization's strengths, weaknesses, opportunities and threats in general. Force Field Analysis focuses on one specific change and the forces for and against it. SWOT supports strategy; Force Field Analysis supports planning how to move a particular situation.

Sources

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