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What are the effects of social loafing?

Social loafing refers to the tendency for individuals to put in less effort when working in a group compared to working alone. This phenomenon was first demonstrated empirically in 1913, and has been robustly replicated many times since. Understanding the causes and effects of social loafing is important for improving group productivity and effectiveness.

What causes social loafing?

There are several key factors that are thought to contribute to social loafing:

  • Diffusion of responsibility – When working in a group, responsibility for the outcome is shared among all members. This can reduce the pressure individuals feel to put in maximum effort.
  • Lack of identifiability – In a group, individual inputs are often summed or aggregated in some way, making it hard to evaluate the efforts of any single member. This provides “cover” for loafing.
  • Lack of accountability – Groups often do not require members to be accountable for their personal contributions, allowing social loafing to go unchallenged.
  • Perceived dispensability – Individuals may feel their efforts are not critical to the group’s success, as other members can pick up the slack.

Essentially, working in groups can reduce both the motivation and obligation for individuals to put forth maximal personal effort.

What are the effects of social loafing?

The main effect of social loafing is reduced individual and group productivity. However, there are several more specific effects that have been demonstrated by research:

  • Lower individual effort – Studies show that when working in groups, people exert less effort compared to working alone on the same tasks. In one study, participants shouted less intensely and pulled on ropes with less force when in groups compared to alone.
  • Poorer group outcomes – Groups where social loafing occurs tend to underperform relative to each member’s individual potential. Summing the performance of individuals working alone can surpass the output of the same individuals working in an unmotivated group.
  • Free-riding – When some group members reduce their efforts, other members often compensate by working harder. This leads to resentment and reduces the willingness to contribute in the future.
  • Greater social loafing in larger groups – More people in a group creates more opportunities for loafing. Large groups tend to have lower cooperation and coordination.
  • Lower satisfaction – Social loafing reduces individual participation in the group process, which can lessen enjoyment and satisfaction with the group experience.

In essence, social loafing can substantially hamper group productivity, morale, and cohesiveness.

How is social loafing measured and detected?

Researchers use several approaches to measure social loafing and compare individual vs group performance:

  • Effort-based tasks – Participants are asked to exert physical or mental effort, such as rope-pulling or shouting. Individual vs collective performance is compared.
  • Evaluating group products – The quality or creativity of group projects is evaluated and compared to the potential based on individuals’ past performance.
  • Self-reported evaluations – Participants complete questionnaires about their perceived effort. Social loafing is evident when less effort is reported in groups.
  • Engagement tracking – New technologies allow tracking of indicators of participation and engagement, revealing social loafing tendencies.

By utilizing these methods, researchers can quantify the decline in motivation when working collectively versus individually.

What factors increase or reduce social loafing?

Many studies have tested factors that may influence the severity of social loafing. Key findings include:

  • Perceived value of the task – More meaningful or engaging tasks elicit greater individual effort.
  • Group commitment and cohesion – Strong shared goals and team identity reduces loafing.
  • Rewards and evaluation – Providing incentives for group performance and evaluating individuals reduces loafing.
  • Smaller group size – Social loafing tends to be lower in smaller, more coordinated groups.
  • Leadership – Clear expectations and coordination from a leader helps prevent social loafing.

Essentially, increasing individual motivation, accountability, and coordination among groups members can minimize social loafing.

Examples of social loafing

Social loafing has been demonstrated across a wide range of tasks and settings. Here are some examples:

  • Lower yelling intensity in groups – In several studies, participants yelled less intensely when surrounded by others yelling compared to when yelling alone.
  • Reduced rope-pulling effort – When pulling a rope in groups, participants exerted significantly less force than when pulling alone.
  • Poorer performance in crowdsourcing – When completing crowdsourced tasks, the quality of individual contributions is often lower than when people work alone.
  • Lower status updates in virtual teams – Members of virtual teams have been shown to contribute fewer written status updates when working collectively.
  • Student project groups – Without shared responsibility, students in group projects often report some members failing to fully contribute.

These demonstrate that social loafing occurs across many different tasks and collaboration settings.

Strategies for reducing social loafing

Given the potentially detrimental effects of social loafing, managers, educators, and group leaders should implement strategies to limit its occurrence. Here are some recommended approaches:

  • Provide group incentives and rewards – Tie collective outcomes to valued rewards to motivate joint effort.
  • Foster group cohesion – Facilitate relationship building and strengthen group identity.
  • Ensure accountability – Evaluate and provide feedback on individual contributions.
  • Assign specific roles – Give each member differentiated duties so efforts cannot be duplicated.
  • Limit group size – Keep groups small enough for coordination and individual accountability.
  • Set challenging goals – Establish high expectations that require maximal effort to achieve.
  • Monitor publicly – Track and share progress and metrics publicly to encourage contributions.

Implementing combinations of these strategies can curtail the likelihood of social loafing emerging and limiting group productivity.


Social loafing is a well-established phenomenon where individuals reduce their effort when working collectively compared to alone. This can significantly impair group productivity and morale. By increasing motivation, accountability, coordination and team identity, the detrimental effects of social loafing can be minimized. Managers and team leaders should employ strategies to foster a culture of group commitment and contribution.