Key takeaways
– The Least-Preferred Coworker (LPC) Scale was developed by Fred Fiedler as part of his contingency theory of leadership. It is intended to classify a leader’s basic orientation as relationship‑oriented (high LPC) or task‑oriented (low LPC).
– The LPC requires a rater to think of the one person they would least want to work with and then rate that person across a set of bipolar adjectives (commonly 18–25 pairs) using a numeric scale (1–8). The ratings are summed to produce an LPC score.
– Higher total scores indicate a relationship orientation (leaders who emphasize people and relationships); lower scores indicate a task orientation (leaders who emphasize goals and task accomplishment).
– The LPC is most useful when combined with situational assessment (Fiedler’s three situational variables: leader–member relations, task structure, and leader’s position power) to decide which style will be most effective in a particular context.
– The LPC has practical uses in leadership development and team design but has limitations (response bias, cultural effects, stability across time). Use it as one input among several, not a sole determinant of role decisions.
What the LPC measures (simple logic)
– Instruction: identify the one person you would least like to work with (your “least-preferred coworker”).
– Rate that person on a series of opposing adjectives (e.g., pleasant–unpleasant, friendly–unfriendly, supportive–hostile). Each pair is scored on a 1–8 scale; some versions use 18 pairs, some up to 25.
– Sum the numeric responses. A higher sum = leader tends to describe even their least-liked coworker in relatively positive terms → relationship‑oriented. A lower sum = leader describes that person more negatively → task‑oriented.
– Underlying idea: individuals’ descriptions of their worst coworker reveal whether they fundamentally value relationships or task achievement.
How the LPC scale works — step by step
1. Select the LPC instrument
• Use a validated LPC questionnaire (typical lengths: 18 or 25 bipolar adjectives). If you build your own, use established adjective pairs and keep the 1–8 numeric scale to preserve comparability.
2. Instruct the respondent
• Ask them to think of the one co‑worker with whom they would least like to work and to keep that person in mind while rating each adjective pair.
3. Rate each adjective pair
• Each pair is rated 1–8 (1 anchors the negative end — e.g., “unpleasant” — and 8 anchors the positive end — e.g., “pleasant”).
4. Compute the score
• Sum the numeric ratings. Score range examples:
• 18-item version: minimum = 18 (18×1), maximum = 144 (18×8). Midpoint = 18 × 4.5 = 81.
• 25-item version: minimum = 25, maximum = 200. Midpoint = 25 × 4.5 = 112.5.
• Interpret relative to the appropriate midpoint: scores above the midpoint = relatively relationship‑oriented; scores below = relatively task‑oriented.
5. Apply in context
• Use the LPC classification together with situational assessment (leader–member relations, task structure, position power) to determine which leadership style fits best.
Applying LPC: Fiedler’s contingency logic (practical application)
– Fiedler argued that leadership effectiveness depends on matching the leader’s style to the situation. The situation is summarized by three variables:
1. Leader–member relations: degree of trust, respect, and confidence between leader and group (good vs poor).
2. Task structure: whether tasks are clear, well‑structured, and routine (high vs low structure).
3. Leader’s position power: formal authority to reward/punish (strong vs weak).
– In general:
• Highly favorable or highly unfavorable situations tend to favor task‑oriented (low LPC) leaders.
• Moderately favorable situations tend to favor relationship‑oriented (high LPC) leaders.
– Practical use: assess the situation on the three variables, then decide whether the leader’s LPC orientation is a match or whether situational adjustments or role reassignment are warranted.
Practical steps for managers and HR practitioners
1. Define the purpose
• Use the LPC for leadership development, succession planning, team assignment, or research—not as a stand‑alone hiring gate.
2. Administer carefully
• Ensure confidentiality, give clear instructions to think of a single least‑preferred coworker, and use the standard adjective set and 1–8 scale.
3. Score and interpret
• Compute the total; compare to the midpoint for the instrument length; classify as high or low LPC.
4. Combine with situational assessment
• Rate the current team/situation on leader–member relations, task structure, and position power. Use Fiedler’s guidance to judge whether the leader’s LPC orientation matches the situation.
5. Use results for development, not punishment
• Discuss insights with the leader in coaching sessions. For example, a low LPC leader may need development in relationship skills; a high LPC leader may need support in providing structure and driving deadlines.
6. Adjust assignments, not personalities
• If mismatch is unavoidable and performance matters, reassign leaders to contexts that fit their orientation or change situational features (increase task structure, bolster position power, or improve leader–member relations).
7. Reassess periodically
• Leadership effectiveness and team composition change; retest if the role or environment changes.
Concrete example
– Team A: experienced professionals, strong leader–member relations, high position power, moderate task structure.
• Fiedler suggests a relationship‑oriented leader (high LPC) may be effective here to keep morale and coordinate collaboration.
– Team B: new hires, unclear tasks, weak leader–member relations, low position power.
• A task‑oriented (low LPC) leader who provides clear goals, close monitoring, and structure may be more effective.
Special considerations and limitations
– Response biases and mood: because respondents focus on a single person, temporary moods or recent events can skew ratings.
– Cultural differences: descriptors of “pleasant” or “task oriented” vary across cultures; norms influence how people rate others.
– Stability and dispositional claims: LPC is intended to reflect a leadership orientation, but scores can shift with experience, training, or context.
– Not prescriptive: LPC indicates orientation, not competence. A high LPC leader is not inherently better than a low LPC leader.
– Use alongside other tools: 360° feedback, behavioral interviews, situational judgment tests, and performance metrics provide a fuller picture.
– Ethical use: do not use LPC alone to terminate or blacklist employees; use it to guide development and fit.
Sample set of bipolar adjectives (typical items)
– pleasant — unpleasant
– friendly — unfriendly
– supportive — hostile
– cooperative — uncooperative
– efficient — inefficient
(These illustrate the format; validated LPC instruments include longer lists; administer a standard LPC questionnaire for formal use.)
Interpreting scores practically
– Calculate midpoint = number_of_items × 4.5.
– If total > midpoint: classify as relationship‑oriented (high LPC).
– If total < midpoint: classify as task‑oriented (low LPC).
– Use magnitude of the difference from the midpoint to gauge strength of orientation (e.g., far above = strongly relationship‑oriented).
Best-practice checklist before using LPC in your organization
– Choose a validated LPC questionnaire.
– Explain the purpose and ensure confidentiality.
– Combine LPC with situational assessment (three variables) and other assessment tools.
– Use results for coaching and role design, not as a sole selection criterion.
– Account for cultural/contextual factors and reassess over time.
Further reading and sources
– Fiedler, F. E. (1967). A Theory of Leadership Effectiveness. New York: McGraw‑Hill. (Foundational description of LPC and contingency model.)
– Investopedia. “Least‑Preferred Coworker Scale.” (overview and practical summary)
– Provide a ready-to-print LPC questionnaire (18-item) and scoring sheet.
– Walk through a sample scoring example with hypothetical responses.
– Create a short manager’s script for giving feedback after LPC assessment.