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

Newman Projections02:06

Newman Projections

20.9K
Different notations are used to represent the three-dimensional structure of molecules on two-dimensional surfaces. One of the most commonly used representations is the dash-wedge formula. The dashed wedges, solid wedges, and the plane lines indicate the groups situated behind the plane, coming out of the plane, and in the plane, respectively.
The organic molecules rotate across the single bonds leading to numerous temporary three-dimensional structures of varying energy known as...
20.9K
Systematic Error: Methodological and Sampling Errors01:15

Systematic Error: Methodological and Sampling Errors

11.0K
In the case of systematic errors, the sources can be identified, and the errors can be subsequently minimized by addressing these sources. According to the source, systematic errors can be divided into sampling, instrumental, methodological, and personal errors.
Sampling errors originate from improper sampling methods or the wrong sample population. These errors can be minimized by refining the sampling strategy. Defective instruments or faulty calibrations are the sources of instrumental...
11.0K
Fundamental Attribution Error01:14

Fundamental Attribution Error

13.8K
According to some social psychologists, people tend to overemphasize internal factors as explanations—or attributions—for the behavior of other people. They tend to assume that the behavior of another person is a trait of that person, and to underestimate the power of the situation on the behavior of others. They tend to fail to recognize when the behavior of another is due to situational variables, and thus to the person’s state. This erroneous assumption is...
13.8K
Random Error01:04

Random Error

9.8K
Random or indeterminate errors originate from various uncontrollable variables, such as variations in environmental conditions, instrument imperfections, or the inherent variability of the phenomena being measured. Usually, these errors cannot be predicted, estimated, or characterized because their direction and magnitude often vary in magnitude and direction even during consecutive measurements. As a result, they are difficult to eliminate. However, the aggregate effect of these errors can be...
9.8K
Margin of Error01:27

Margin of Error

7.6K
The margin of error is also called the maximum error of an estimate. The margin of error is the maximum possible or expected difference between the observed sample parameter value and the actual population parameter value. For proportion, it is the maximum difference between the value of sample proportion obtained from the data and the true value of population proportion. As the true value of the population parameter is not known, the margin of error is calculated using the sample statistic.
7.6K
Standard Error of the Mean01:13

Standard Error of the Mean

12.4K
The sampling variability of a statistic is defined as how much the statistic varies from one sample to another. The sampling variability of a statistic is typically measured by measuring its standard error.
The standard error of the mean is an example of a standard error. It is a unique standard deviation known as the standard deviation of the sampling distribution of the mean. The standard error of the mean is a statistic that calculates how correctly a sample distribution represents a...
12.4K

You might also read

Related Articles

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

Sort by
Same author

Reply to Dushoff et al. and Pifarré i Arolas et al.: Age prioritization for COVID-19 vaccination does save lives and years of life.

Proceedings of the National Academy of Sciences of the United States of America·2021
Same author

Vaccinating the oldest against COVID-19 saves both the most lives and most years of life.

Proceedings of the National Academy of Sciences of the United States of America·2021
Same author

On Negative Heritability and Negative Estimates of Heritability.

Genetics·2020
Same author

Response to Comment on "The plateau of human mortality: Demography of longevity pioneers".

Science (New York, N.Y.)·2018
Same author

The plateau of human mortality: Demography of longevity pioneers.

Science (New York, N.Y.)·2018

Related Experiment Video

Updated: Jan 31, 2026

Errors as a Means of Reducing Impulsive Food Choice
07:07

Errors as a Means of Reducing Impulsive Food Choice

Published on: June 5, 2016

9.2K

Hypothetical errors and plateaus: A response to Newman.

Kenneth W Wachter1

  • 1Department of Demography, University of California, Berkeley, California, United States of America.

Plos Biology
|December 21, 2018
PubMed
Summary
This summary is machine-generated.

This study challenges claims of a mortality rate plateau in Italians over 105 using a hypothetical model. The model

More Related Videos

Isolation of Intrapulmonary Artery and Smooth Muscle Cells to Investigate Vascular Responses
07:56

Isolation of Intrapulmonary Artery and Smooth Muscle Cells to Investigate Vascular Responses

Published on: June 8, 2022

4.8K
Genome-wide Surveillance of Transcription Errors in Eukaryotic Organisms
09:30

Genome-wide Surveillance of Transcription Errors in Eukaryotic Organisms

Published on: September 13, 2018

9.9K

Related Experiment Videos

Last Updated: Jan 31, 2026

Errors as a Means of Reducing Impulsive Food Choice
07:07

Errors as a Means of Reducing Impulsive Food Choice

Published on: June 5, 2016

9.2K
Isolation of Intrapulmonary Artery and Smooth Muscle Cells to Investigate Vascular Responses
07:56

Isolation of Intrapulmonary Artery and Smooth Muscle Cells to Investigate Vascular Responses

Published on: June 8, 2022

4.8K
Genome-wide Surveillance of Transcription Errors in Eukaryotic Organisms
09:30

Genome-wide Surveillance of Transcription Errors in Eukaryotic Organisms

Published on: September 13, 2018

9.9K

Area of Science:

  • Gerontology
  • Demography
  • Mortality Statistics

Background:

  • Recent studies suggested a plateau in mortality rates for Italian supercentenarians (individuals aged 105 and above).
  • Newman's hypothetical model questioned the validity of these findings, citing potential high error rates in extreme age data.

Purpose of the Study:

  • To critically evaluate Newman's hypothetical model regarding mortality rates in Italian supercentenarians.
  • To assess the plausibility of Newman's assumptions about error rates in extreme age data.

Main Methods:

  • Analysis of a hypothetical model proposed by Newman.
  • Examination of birth registration practices for individuals over 110 in Italy.

Main Results:

  • Newman's model suggests implausibly high error rates for extreme ages.
  • Italian birth registration for those over 110 prevents the specific clerical errors Newman assumes.

Conclusions:

  • Newman's hypothetical model is not supported by the data on Italian supercentenarians.
  • The specific types of clerical errors assumed by Newman are unlikely given Italian birth registration practices for extreme ages.