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Related Concept Videos

Contingency Table01:29

Contingency Table

A contingency table provides a way of portraying data that can facilitate calculating probabilities. It is a method of displaying a frequency distribution as a table with rows and columns to show how two variables may be dependent (contingent) upon each other; The table helps determine conditional probabilities quite quickly and can help systematically organize, analyze and quantify data. The table displays sample values concerning two variables that may be dependent or contingent on one...
Compensation Mechanisms01:28

Compensation Mechanisms

The human body employs intricate mechanisms to counteract changes in blood pH, preventing conditions like acidosis (pH < 7.35) and alkalosis (pH > 7.45). These compensatory responses aim to restore normal arterial blood pH by engaging respiratory or renal systems, depending on the source of the imbalance.
Respiratory Compensation
This mechanism addresses metabolic-induced pH imbalances by adjusting breathing rates. Respiratory compensation begins within minutes of detecting a pH...
Quantifying Work02:30

Quantifying Work

As a system undergoes a change, its internal energy can change, and energy can be transferred from the system to the surroundings, or from the surroundings to the system.
Virtual Work01:20

Virtual Work

The principle of virtual work states that if a body is in static and dynamic equilibrium, then the sum of all the virtual work done by all external forces and couple moments for any given virtual displacement must be zero.
In static equilibrium, a body can experience an imaginary or virtual movement, such as displacement or rotation. The virtual work done by a force is equal to the dot product of force and virtual displacement in the direction of the force. When it comes to virtually rotating a...
Determination of Expected Frequency01:08

Determination of Expected Frequency

Suppose one wants to test independence between the two variables of a contingency table. The values in the table constitute the observed frequencies of the dataset. But how does one determine the expected frequency of the dataset? One of the important assumptions is that the two variables are independent, which means the variables do not influence each other. For independent variables, the statistical probability of any event involving both variables is calculated by multiplying the individual...
The Availability Heuristic01:08

The Availability Heuristic

A heuristic is a general problem-solving framework (Tversky & Kahneman, 1974). You can think of these as mental shortcuts that are used to solve problems. Different types of heuristics are used in different types of situations, and the impulse to use a heuristic occurs when one of five conditions is met (Pratkanis, 1989):

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Related Experiment Video

Updated: Jun 4, 2026

Assessment of Stress Effects on Cognitive Flexibility using an Operant Strategy Shifting Paradigm
07:26

Assessment of Stress Effects on Cognitive Flexibility using an Operant Strategy Shifting Paradigm

Published on: May 4, 2020

Contingent workers.

Ryan T Guerrina1, Candace M Burns, Helen Conlon

  • 1USF Health-Sunshine, Orlando, FL, USA. RGuerrin@health.usf.edu

AAOHN Journal : Official Journal of the American Association of Occupational Health Nurses
|March 4, 2011
PubMed
Summary
This summary is machine-generated.

Contingent workers face higher occupational injury risks. This article examines health and safety issues for these workers and implications for occupational health nurses.

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Last Updated: Jun 4, 2026

Assessment of Stress Effects on Cognitive Flexibility using an Operant Strategy Shifting Paradigm
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Published on: August 29, 2018

Area of Science:

  • Occupational Health
  • Workforce Safety
  • Public Health

Background:

  • Contingent workers represent a significant segment of the U.S. labor force, encompassing temporary, contracted, day labor, and freelance roles.
  • These positions span diverse skill and education levels across various industries, including construction, housekeeping, engineering, and nursing.
  • A notable concern is the disproportionately higher likelihood of contingent workers engaging in occupations with increased injury risks, including fatal outcomes.

Purpose of the Study:

  • To investigate select occupational health and safety issues pertinent to contingent workers.
  • To explore the implications of these issues for the practice of occupational health nursing.

Main Methods:

  • This article presents a focused review of existing literature and data on contingent worker safety.
  • Analysis of occupational health and safety challenges specific to non-traditional employment structures.

Main Results:

  • Contingent workers are more frequently employed in high-risk occupations compared to traditional employees.
  • Multiple factors contribute to an elevated risk of work-related injuries, with a particular emphasis on fatal injuries.
  • Specific industry examples highlight the varied nature of risks faced by contingent workers.

Conclusions:

  • Occupational health and safety interventions must address the unique vulnerabilities of the contingent workforce.
  • Occupational health nurses play a crucial role in mitigating risks and promoting safer work environments for contingent workers.
  • Further research and targeted policies are needed to enhance the well-being of this growing segment of the workforce.