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

Statistical Significance01:50

Statistical Significance

22.2K
Once data is collected from both the experimental and the control groups, a statistical analysis is conducted to find out if there are meaningful differences between the two groups. A statistical analysis determines how likely any difference found is due to chance (and thus not meaningful). In psychology, group differences are considered meaningful, or significant, if the odds that these differences occurred by chance alone are 5 percent or less. Stated another way, if we repeated this...
22.2K
Probability in Statistics01:14

Probability in Statistics

23.5K
Probability is the likelihood of an event occurring. The term event is defined as a collection of results of a procedure. An event is a simple event when an outcome cannot be divided into simpler parts.
An example of a simple event is a coin toss. The result of a coin toss is either a head or a tail. Here, head and tail are two simple events. These two simple events make up the sample space. Further, the probability of an event occurring falls within the range of 0 to 1. The probability of an...
23.5K
Introduction to Statistics01:17

Introduction to Statistics

64.6K
The science of statistics involves collecting, analyzing, interpreting, and presenting data. The method of collecting, organizing, and summarizing data is called descriptive statistics. The systematic method of drawing inferences from the sample data and predicting unknown characteristics of a population is called inferential statistics.
In statistics, the collection of individuals or objects under study is called population. The idea of sampling is to select a portion of the larger population...
64.6K
Power01:08

Power

13.1K
The concept of work involves force and displacement; meanwhile, the work-energy theorem relates the net work done on a body to the difference in its kinetic energy, calculated between two points on its trajectory. While none of these quantities or relations involves time explicitly, we know that the time available to accomplish work is often just as important as the amount of work itself. For example, sprinters in a race may have achieved the same velocity at the finish, therefore,...
13.1K
Statistical Analysis: Overview01:11

Statistical Analysis: Overview

16.6K
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...
16.6K
Identifying Statistically Significant Differences: The F-Test01:14

Identifying Statistically Significant Differences: The F-Test

3.9K
The F-test is used to compare two sample variances to each other or compare the sample variance to the population variance. It is used to decide whether an indeterminate error can explain the difference in their values. The underlying assumptions that allow the use of the F-test include the data set or sets are normally distributed, and the data sets are independent of each other. The test statistic F is calculated by dividing one variance by another. In other words, the square of one standard...
3.9K

You might also read

Related Articles

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

Sort by
Same author

Distribution of bladder afferent activity across the sacral roots in sheep shows marked individual variation: implications for neuroprosthesis design.

Frontiers in neuroscience·2026
Same author

Author Correction: Biallelic variants in the noncoding RNA gene RNU4-2 cause a recessive neurodevelopmental syndrome with distinct white matter changes.

Nature genetics·2026
Same author

Symmetric instability drives exchange between surface and bottom waters in a coastal front.

Science advances·2026
Same author

Large vessel vasculitis post granulocyte-colony stimulating factor (G-CSF) use in a patient undergoing neoadjuvant chemotherapy for pancreatic adenocarcinoma.

BMJ case reports·2026
Same author

Biallelic variants in the noncoding RNA gene RNU4-2 cause a recessive neurodevelopmental syndrome with distinct white matter changes.

Nature genetics·2026
Same author

A comparison of collision factors and toxicologic characteristics for rural and urban drivers presenting to the emergency department after a vehicular collision.

Traffic injury prevention·2026

Related Experiment Video

Updated: Feb 11, 2026

Using Learning Outcome Measures to assess Doctoral Nursing Education
10:07

Using Learning Outcome Measures to assess Doctoral Nursing Education

Published on: June 21, 2010

19.5K

Statistical Power in Nursing Education Research.

Darrell R Spurlock, John Taylor, Darrell Spurlock

    The Journal of Nursing Education
    |May 3, 2018
    PubMed
    Summary
    This summary is machine-generated.

    Nursing studies should conduct power analyses to ensure accurate statistical conclusions and avoid Type II errors. This increases the validity of research findings by determining appropriate sample sizes.

    More Related Videos

    E-Patient Counseling Trial E-PACO: Computer Based Education versus Nurse Counseling for Patients to Prepare for Colonoscopy
    06:28

    E-Patient Counseling Trial E-PACO: Computer Based Education versus Nurse Counseling for Patients to Prepare for Colonoscopy

    Published on: August 1, 2019

    9.2K
    An Educational Video Demonstration of How to Prone a Critically Ill Intubated Patient
    07:16

    An Educational Video Demonstration of How to Prone a Critically Ill Intubated Patient

    Published on: November 30, 2022

    4.8K

    Related Experiment Videos

    Last Updated: Feb 11, 2026

    Using Learning Outcome Measures to assess Doctoral Nursing Education
    10:07

    Using Learning Outcome Measures to assess Doctoral Nursing Education

    Published on: June 21, 2010

    19.5K
    E-Patient Counseling Trial E-PACO: Computer Based Education versus Nurse Counseling for Patients to Prepare for Colonoscopy
    06:28

    E-Patient Counseling Trial E-PACO: Computer Based Education versus Nurse Counseling for Patients to Prepare for Colonoscopy

    Published on: August 1, 2019

    9.2K
    An Educational Video Demonstration of How to Prone a Critically Ill Intubated Patient
    07:16

    An Educational Video Demonstration of How to Prone a Critically Ill Intubated Patient

    Published on: November 30, 2022

    4.8K

    Area of Science:

    • Nursing Research Methodology
    • Statistical Validity in Healthcare

    Background:

    • Decades of encouragement for nursing researchers to validate statistical conclusions.
    • A noted fraction of nursing studies utilize power analyses to mitigate Type II errors.

    Purpose of the Study:

    • To review major aspects of power analysis procedures.
    • To reiterate recommendations for conducting power analyses in nursing research.

    Main Methods:

    • Review of power analysis procedures.
    • Discussion of statistical conclusion validity.

    Main Results:

    • Many nursing studies do not perform power analyses.
    • Power analysis is crucial for mitigating Type II statistical conclusion errors.

    Conclusions:

    • Researchers planning inferential statistical analyses should conduct power analyses.
    • Power analysis guides sample size decisions, enhancing study validity.