Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Controls in Experiments01:13

Controls in Experiments

14.6K
When conducting an experiment, it is crucial to have control to reduce bias and accurately measure the dependent variables. It also marks the results more reliable. Controls are elements in an experiment that have the same characteristics as the treatment groups but are not affected by the independent variable. By sorting these data into control and experimental conditions, the relationship between the dependent and independent variables can be drawn. A randomized experiment always includes a...
14.6K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Exploring Parents' Violence Against School Teachers: Manifestation, Risk Factors, and Coping Strategies.

Behavioral sciences (Basel, Switzerland)·2025
Same author

Cardiorespiratory fitness and depression symptoms among adults during the COVID-19 Pandemic: Cooper Center Longitudinal Study.

Preventive medicine reports·2022
Same author

The burden of injury in Central, Eastern, and Western European sub-region: a systematic analysis from the Global Burden of Disease 2019 Study.

Archives of public health = Archives belges de sante publique·2022
Same author

Cigarette Prices and Smoking Behavior in Israel: Findings from a National Study of Adults (2002-2017).

International journal of environmental research and public health·2021
Same author

Did the events following the COVID-19 outbreak influence the incidents of violence against hospital staff?

Israel journal of health policy research·2021
Same author

Global injury morbidity and mortality from 1990 to 2017: results from the Global Burden of Disease Study 2017.

Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention·2020

Related Experiment Video

Updated: Dec 12, 2025

Large-Scale SARS-CoV-2 Testing Utilizing Saliva and Transposition Sample Pooling
08:26

Large-Scale SARS-CoV-2 Testing Utilizing Saliva and Transposition Sample Pooling

Published on: June 23, 2022

1.9K

The Sky Has Its Limits in COVID-19 Testing.

Shai Linn1, Shay Tzafrir2, Shay Gueron3

  • 1School of Public Health, The University of Haifa, Haifa, Israel.

Rambam Maimonides Medical Journal
|August 15, 2020
PubMed
Summary

COVID-19 testing accuracy is crucial for travel policies. Even highly sensitive tests can produce false positives in low-prevalence populations, limiting their effectiveness for reopening airports.

More Related Videos

Design to Implementation Study for Development and Patient Validation of Paper-Based Toehold Switch Diagnostics
10:42

Design to Implementation Study for Development and Patient Validation of Paper-Based Toehold Switch Diagnostics

Published on: June 17, 2022

3.3K
Author Spotlight: Advancing Pathogen Diagnostics with Standardized LAMP
05:34

Author Spotlight: Advancing Pathogen Diagnostics with Standardized LAMP

Published on: September 8, 2023

1.1K

Related Experiment Videos

Last Updated: Dec 12, 2025

Large-Scale SARS-CoV-2 Testing Utilizing Saliva and Transposition Sample Pooling
08:26

Large-Scale SARS-CoV-2 Testing Utilizing Saliva and Transposition Sample Pooling

Published on: June 23, 2022

1.9K
Design to Implementation Study for Development and Patient Validation of Paper-Based Toehold Switch Diagnostics
10:42

Design to Implementation Study for Development and Patient Validation of Paper-Based Toehold Switch Diagnostics

Published on: June 17, 2022

3.3K
Author Spotlight: Advancing Pathogen Diagnostics with Standardized LAMP
05:34

Author Spotlight: Advancing Pathogen Diagnostics with Standardized LAMP

Published on: September 8, 2023

1.1K

Area of Science:

  • Epidemiology
  • Diagnostic Test Evaluation
  • Public Health Policy

Background:

  • The COVID-19 pandemic necessitated international travel restrictions.
  • Reopening airports may rely on traveler testing for SARS-CoV-2.
  • Understanding test accuracy is vital for informed public health decisions.

Purpose of the Study:

  • To discuss methodologies for estimating COVID-19 test detection and diagnostic accuracy.
  • To differentiate between technical test characteristics and clinical diagnostic measures.
  • To highlight the impact of disease prevalence on diagnostic test performance.

Main Methods:

  • Explanation of diagnostic test evaluation methodologies.
  • Introduction of the Predictive Summary Index (PSI) for test assessment.
  • Calculation of the minimum tests needed for accurate diagnosis (1/PSI).

Main Results:

  • Distinction between test detection and diagnostic accuracy is critical.
  • COVID-19 prevalence significantly influences a test's diagnostic ability.
  • High-sensitivity tests can yield numerous false positives in low-prevalence settings.

Conclusions:

  • Relying solely on COVID-19 diagnostic tests for airport reopening has limitations.
  • Low prevalence can necessitate multiple tests to confirm a diagnosis, increasing costs.
  • Test accuracy must be considered alongside prevalence for effective public health strategies.