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

Random and Systematic Errors01:20

Random and Systematic Errors

Scientists always try their best to record measurements with the utmost accuracy and precision. However, sometimes errors do occur. These errors can be random or systematic. Random errors are observed due to the inconsistency or fluctuation in the measurement process, or variations in the quantity itself that is being measured. Such errors fluctuate from being greater than or less than the true value in repeated measurements. Consider a scientist measuring the length of an earthworm using a...
Uncertainty in Measurement: Accuracy and Precision03:37

Uncertainty in Measurement: Accuracy and Precision

Scientists typically make repeated measurements of a quantity to ensure the quality of their findings and to evaluate both the precision and the accuracy of their results. Measurements are said to be precise if they yield very similar results when repeated in the same manner. A measurement is considered accurate if it yields a result that is very close to the true or the accepted value. Precise values agree with each other; accurate values agree with a true value.
Errors occurring during blood pressure monitoring01:25

Errors occurring during blood pressure monitoring

Blood pressure monitoring is a crucial clinical procedure in diagnosing and managing various cardiovascular conditions. Despite its significance, the accuracy of blood pressure measurements can be compromised by multiple factors, potentially leading to either falsely high or low readings. These inaccuracies are critical as they can significantly impact patient care. So, it is vital to understand these challenges deeply and adopt strategic approaches to minimize errors.
Several factors...
Statistical Analysis: Overview01:11

Statistical Analysis: Overview

When we take repeated measurements on the same or replicated samples, we will observe inconsistencies in the magnitude. These inconsistencies are called errors. To categorize and characterize these results and their errors, the researcher can use statistical analysis to determine the quality of the measurements and/or suitability of the methods.
One of the most commonly used statistical quantifiers is the mean, which is the ratio between the sum of the numerical values of all results and the...
Guidelines For Measuring Vital Signs01:19

Guidelines For Measuring Vital Signs

Following these guidelines can help nurses accurately measure vital signs, assess changes in patient conditions, and provide timely treatment when necessary. Adhering closely to the guidelines ensures the accuracy and reliability of the results.
Before taking a patient's vital signs, a nurse would consider and assess the patient's comfort level and ensure appropriate equipment is available.
Measurement of Bioavailability: Pharmacodynamic Methods01:20

Measurement of Bioavailability: Pharmacodynamic Methods

Pharmacodynamic methods provide insights into a drug's effects on physiological processes over time and play a crucial role in understanding bioavailability and therapeutic efficacy. These methods can be broadly classified into acute pharmacological and therapeutic response approaches, each with distinct mechanisms and applications.The acute pharmacological response method directly correlates a drug's physiological effects, such as ECG or pupil diameter changes, to its time course in the body.

You might also read

Related Articles

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

Sort by
Same author

[Alcohol consumption among high school students from the Araucanía-Chile: ethnicity and residence].

Revista chilena de pediatria·2018
Same author

Latin American Clinical Epidemiology Network Series - Paper 1: The Latin American Clinical Epidemiology Network "LatinCLEN".

Journal of clinical epidemiology·2016
Same author

[Association between overweight and early childhood caries].

Revista chilena de pediatria·2015
Same author

[Estimation of thyroid cancer incidence in Chile based on pathological reports].

Revista medica de Chile·2014
Same author

[Risk factors for metabolic syndrome in a case control study in Temuco, Chile].

Revista medica de Chile·2012
Same author

[Risk of type 2 diabetes mellitus among users of atypical antipsychotic drugs or conventional treatment: systematic review and meta-analysis].

Revista medica de Chile·2010

Related Experiment Video

Updated: Jul 5, 2026

Assessment of Child Anthropometry in a Large Epidemiologic Study
09:36

Assessment of Child Anthropometry in a Large Epidemiologic Study

Published on: February 2, 2017

[Some methodological issues about measurements in health].

Ana M Alarcón Ma1, Sergio Muñoz N

  • 1Departamento de Salud Pública, Centro de Investigación y Gestión para la Evidencia en Salud (CIGES), Facultad de Medicina, Universidad de La Frontera, Temuco, Chile. amalarc@ufro.cl

Revista Medica De Chile
|May 17, 2008
PubMed
Summary

Accurate measurement is crucial in healthcare. This article discusses developing and assessing measurement tools for validity and truthfulness, essential for reliable health decisions.

More Related Videos

Clinical Anthropometrics and Body Composition from 3-Dimensional Optical Imaging
06:48

Clinical Anthropometrics and Body Composition from 3-Dimensional Optical Imaging

Published on: June 7, 2024

Related Experiment Videos

Last Updated: Jul 5, 2026

Assessment of Child Anthropometry in a Large Epidemiologic Study
09:36

Assessment of Child Anthropometry in a Large Epidemiologic Study

Published on: February 2, 2017

Clinical Anthropometrics and Body Composition from 3-Dimensional Optical Imaging
06:48

Clinical Anthropometrics and Body Composition from 3-Dimensional Optical Imaging

Published on: June 7, 2024

Area of Science:

  • Healthcare Measurement Science
  • Health Informatics
  • Clinical Decision Support

Context:

  • Healthcare is increasingly complex, requiring measurement of diverse aspects beyond traditional clinical data.
  • Technological advancements offer precise instruments, but new challenges arise in measuring patient-reported outcomes and cost-effectiveness.
  • Accurate measurement is vital for informed diagnostic, therapeutic, and prognostic decisions by clinicians and researchers.

Purpose:

  • To explore operational concepts for developing and evaluating measurement instruments.
  • To enhance the understanding of validity and truthfulness in health measurements.
  • To guide healthcare professionals in selecting and utilizing reliable measurement tools.

Summary:

  • This article examines the principles of measurement quality in healthcare, focusing on validity and truthfulness.
  • It addresses the challenges of measuring complex health aspects like patient perception and cost-effectiveness.
  • The work provides a framework for assessing the reliability of measurement instruments used in clinical practice.

Impact:

  • Improved quality of care through more accurate diagnostic and therapeutic decisions.
  • Enhanced reliability of health research findings.
  • Better patient outcomes due to evidence-based clinical practice.