Resources Repository
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ToolInteractive 2020COVID-19 Antibody Tests: Calculator for Interpreting Test Results
Antibody testing can determine previous exposure to SARS-CoV-2 virus. This interactive calculator, linked to the article …
Antibody testing can determine previous exposure to SARS-CoV-2 virus. This interactive calculator, linked to the article below* on antibody testing for SARS-CoV-2 virus, allows users to vary the prior probability of infection, the sensitivity of SARS-CoV-2 antibody testing, and the specificity of SARS-CoV-2 antibody testing. Key points made in the article accompanying the interactive include: (1) antibody testing is likely to be most useful 2 weeks after infection, (2) sensitivity and specificity will vary over time and…
Probability/Bayes | Health/Medicine | Test Performance | Technology Assessment | Infectious Diseases | Clinical Care | Science/Technology -
Tools/ModelsInteractive, Teaching Resource 2020Interactive Graphic: Interpreting a COVID-19 Test Result
Currently, the most common diagnostic test for COVID-19 relies on reverse transcriptase polymerase chain reaction …
Currently, the most common diagnostic test for COVID-19 relies on reverse transcriptase polymerase chain reaction (RT-PCR), and most often uses samples obtained from the respiratory tract by nasopharyngeal swab. This interactive graphic demonstrates the influence of the prior probability of COVID-19, the test sensitivity (i.e., the probability of a positive test conditional on disease presence), and the test specificity (i.e., the probability of a negative test conditional on disease absence) on the post-test probability of…
Probability/Bayes | Health/Medicine | Test Performance | Infectious Diseases | Clinical Care | Science/Technology | High School | College | Graduate | Doctoral | Professional | Graphics/Visualization | Quantitative Literacy -
Online LearningVideo, Teaching Resource 2020Valuing Statistical Lives: Concepts, Current Practices, and Challenges
Many policies aim to improve longevity, decreasing the risk of death in each year, and …
Many policies aim to improve longevity, decreasing the risk of death in each year, and the value of these risk reductions often dominate the estimated benefits of risk regulations and other policies. This value is often expressed as the value per statistical life (VSL), a term that is widely misunderstood. It is not the value that the analyst, the government, or the individual places on saving an identified life with certainty. Instead, it reflects individuals’…
Benefit-Cost Analysis | Health/Medicine | Policy/Regulation | Climate/Environment | Global -
Lesson/ModuleVideo, Teaching Resource 2018Estimating Transition Probabilities for a Model
This video is intended to provide a discussion on various methods for deriving probabilities that are …
This video is intended to provide a discussion on various methods for deriving probabilities that are needed for decision models. Presented are the concepts of literature based Odds Ratios and Relative Risks, which need to be transformed into probabilities, how to deal with probability estimates from time frames not relevant to the model in question, and how to derive probabilities from published summary statistics. This lecture is aimed at the researcher who is interested in operationalizing…
Probability/Bayes | Health/Medicine | Evidence Synthesis | Mathematical Models | North America | College | Graduate | Doctoral | Critical Thinking/Analysis | Quantitative Literacy -
Online LearningVideo, Teaching Resource 2023Khan Videos: Conditional Probability
These three videos, produced by Khan Academy, focus on conditional probability. Conditional probability with Bayes' …
These three videos, produced by Khan Academy, focus on conditional probability. Conditional probability with Bayes' Theorem (~5 min). Created by Brit Cruise, this video presents conditional probability visually using trees. Conditional probability and independence (~4 min). This video uses conditional probability to see if events are independent or not. Conditional probability tree diagram (~11 min). This video uses a tree diagram to work out the following conditional probability question: If someone fails a drug test, what is the…
Probability/Bayes | Health/Medicine | Science/Technology | High School | College | Graduate | Quantitative Literacy