Related Experiment Video

Updated: Aug 8, 2026

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact
07:30

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact

Published on: September 21, 2017

Accident risk and risk-taking behaviour among young drivers

B A Jonah

    Accident; Analysis and Prevention
    |August 1, 1986
    PubMed

    More Related Videos

    Driving Under the Influence: How Music Listening Affects Driving Behaviors07:25

    Driving Under the Influence: How Music Listening Affects Driving Behaviors

    Published on: March 27, 2019

    Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research07:15

    Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research

    Published on: December 18, 2020

    Related Concept Videos

    Self-Presentation: Self-Monitoring and Self-Handicapping02:05

    Self-Presentation: Self-Monitoring and Self-Handicapping

    People can go to great lengths to protect their self-image and present themselves in ways that they want others to see them. Sociologist Erving Goffman presented the idea that a person is like an actor on a stage. Calling his theory dramaturgy, Goffman believed that we use “impression management” to present ourselves to others as we hope to be perceived. Each situation is a new scene, and individuals perform different roles depending on who is present (Goffman, 1959). Think about the way you...
    Introduction to Test of Independence01:21

    Introduction to Test of Independence

    In statistics, the term independence means that one can directly obtain the probability of any event involving both variables by multiplying their individual probabilities. Tests of independence are chi-square tests involving the use of a contingency table of observed (data) values.
    The test statistic for a test of independence is similar to that of a goodness-of-fit test:
    Hypothesis Test for Test of Independence01:16

    Hypothesis Test for Test of Independence

    The test of independence is a chi-square-based test used to determine whether two variables or factors are independent or dependent. This hypothesis test is used to examine the independence of the variables. One can construct two qualitative survey questions or experiments based on the variables in a contingency table. The goal is to see if the two variables are unrelated (independent) or related (dependent). The null and alternative hypotheses for this test are:
    H0: The two variables (factors)...
    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...
    Drug Toxicity: Risk factors01:24

    Drug Toxicity: Risk factors

    Adverse Drug Reactions (ADRs) are potential complications that arise during pharmacotherapy, influenced by multiple risk factors. Age plays a significant role; both neonates and the elderly are at heightened risk due to their respective immature and diminished metabolic and elimination processes. Gender also impacts ADRs, with females experiencing a 1.5 to 1.7-fold greater risk than males, which may be linked to pharmacokinetic, pharmacodynamic, and hormonal differences. Notably, neonates, the...
    Relative Risk01:12

    Relative Risk

    Relative risk (RR) is a statistical measure commonly used in epidemiology to compare the likelihood of a particular event occurring between two groups. This metric is important for evaluating the relationship between exposure to a specific risk factor and the probability of a particular outcome. It plays a crucial role in medical research, public health studies, and risk assessment. Relative risk quantifies how much more (or less) likely an event is to occur in an exposed group compared to an...