Related Experiment Video
Updated: Feb 14, 2026
05:47
Evidence-based Knowledge Synthesis and Hypothesis Validation: Navigating Biomedical Knowledge Bases via Explainable AI and Agentic Systems
Published on: June 13, 2025
1.6K
Peers at work: Evidence from the lab
Roel van Veldhuizen1, Hessel Oosterbeek2, Joep Sonnemans2,3
1WZB Berlin, Berlin, Germany.
Plos One
|February 7, 2018
Summary
Observability in team tasks doesn't always boost low-productivity workers. Peer effects are mixed, with some improving performance and others free-riding, challenging prior field research findings.
Area of Science:
- Behavioral Economics
- Organizational Psychology
- Labor Economics
Background:
- Peer effects significantly influence workplace productivity.
- Observability is hypothesized to enhance positive peer effects.
- Previous field studies suggest observability benefits low-performers.
Purpose of the Study:
- To experimentally investigate the impact of observability on peer effects in a team production setting.
- To determine if low-productivity workers improve when observed by high-productivity peers.
- To analyze the heterogeneity of peer effects under varying observability conditions.
Main Methods:
- A controlled laboratory experiment involving a team real-effort production task.
- Manipulation of observability: participants could (or could not) observe a co-worker, and be observed by them.
- Measurement of individual worker productivity and team output.
Main Results:
- No evidence found that low-productivity workers improved when observed by high-productivity co-workers.
- Significant heterogeneity in peer effects was observed.
- Some workers reciprocated high-productivity peers, while others engaged in free-riding behavior.
Conclusions:
- Observability's role in mitigating negative peer effects or enhancing positive ones in production tasks is complex.
- Lab findings contrast with some previous field research on peer effects and observability.
- Worker responses to peer observability are heterogeneous, indicating both cooperative and opportunistic behaviors.
Related Concept Videos
02:55The Evidence for Evolution
48.4K
Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
48.4K
01:23Influence of Parents and Peers on Identity
592
Adolescence is a pivotal period of identity formation, during which individuals begin to answer questions central to their sense of self, such as "Who am I?" and "Who do I hope to become?" Both parents and peers play critical roles in guiding adolescents through this complex developmental phase.
Parental Influence on Identity Development
Parents serve as primary guides and managers in an adolescent's life, offering support instrumental in decision-making and personal growth....
Parental Influence on Identity Development
Parents serve as primary guides and managers in an adolescent's life, offering support instrumental in decision-making and personal growth....
592
01:16Flame Photometry: Lab
990
In a flame photometer, when a solution like potassium chloride is aspirated into the flame, the solvent evaporates, leaving behind dehydrated salt. This salt dissociates into free gaseous atoms in their ground state. Some of these atoms absorb energy from the flame, leading to their excitation. The excited atoms return to the ground state, emitting photons at characteristic wavelengths. Because only electronic transitions are involved, the resulting emission lines are very narrow. The intensity...
990
01:21Atomic Absorption Spectroscopy: Lab
1.1K
For AAS measurements, samples must be introduced as clear solutions, often requiring extensive preliminary treatment to dissolve materials like soils, animal tissues, and minerals. Common methods for sample preparation include treatment with hot mineral acids, wet ashing, combustion in closed containers, high-temperature ashing, or fusion with reagents.
Solutions containing organic solvents, such as low-molecular-mass alcohols, esters, or ketones, enhance absorbances by increasing...
Solutions containing organic solvents, such as low-molecular-mass alcohols, esters, or ketones, enhance absorbances by increasing...
1.1K
01:29Atomic Emission Spectroscopy: Lab
666
AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
666
02:09Stereotype Threat and Self-fulfilling Prophecies
42.5K
When we hold a stereotype about a person, we have expectations that he or she will fulfill that stereotype. A self-fulfilling prophecy is an expectation held by a person that alters his or her behavior in a way that tends to make it true. When we hold stereotypes about a person, we tend to treat the person according to our expectations. This treatment can influence the person to act according to our stereotypic expectations, thus confirming our stereotypic beliefs. Research by Rosenthal and...
42.5K