Related Concept Videos
01:11Clinical Trials: Overview
Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
01:16Clinical Trials
Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
There are four phases in a clinical trial. A phase one...
There are four phases in a clinical trial. A phase one...
01:20Study Designs in Epidemiology
Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and case-control studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and case-control studies.
01:21Health Literacy
Health literacy is an individual's or a community's capacity to comprehend, receive, read, and use relevant healthcare information and services. The World Health Organization (WHO, 2018) defines health literacy as the cognitive and social skills that determine the ability of individuals to gain access to, understand, and use information in ways that promote and maintain good health. As a result, the WHO helps individuals manage long-term health concerns, participate in preventative programs,...
02:46Chi-square Analysis
The chi-square test is a statistical hypothesis test. It is used to check whether there is a significant difference between an expected value and an observed value. In the context of genetics, it enables us to either accept or reject a hypothesis, based on how much the observed values deviate from the expected values.
The chi-square test was developed by Pearson in 1990.
The first step of performing a Chi-square analysis is to establish a null hypothesis, which assumes that there is no real...
The chi-square test was developed by Pearson in 1990.
The first step of performing a Chi-square analysis is to establish a null hypothesis, which assumes that there is no real...
01:27Nursing Clinical Information System
Nursing Clinical Information System (NCIS)
A Nursing Clinical Information System (NCIS) is a specialized type of healthcare information system tailored to meet the unique needs of nursing practice. It incorporates the principles of nursing informatics to streamline information management and improve the quality of care delivery.
Critical attributes of NCIS include:
A Nursing Clinical Information System (NCIS) is a specialized type of healthcare information system tailored to meet the unique needs of nursing practice. It incorporates the principles of nursing informatics to streamline information management and improve the quality of care delivery.
Critical attributes of NCIS include:
You might also read
Related Articles
Articles linked to this work by shared authors, journal, and citation graph.
Sort by
Same author
Reporting Interest-Holder Engagement in Practice Guidelines: The RIGHT-MuSE Checklist.
Annals of internal medicine·2026
Same journal
Mechanical thromboprophylaxis for preventing intradialytic hypotension in people undergoing maintenance haemodialysis.
The Cochrane database of systematic reviews·2026
Same journal
Prognostic models for predicting intensive care unit admission or mortality in critically ill adults not yet been admitted to the intensive care unit.
The Cochrane database of systematic reviews·2026
Same journal
Views and experiences of weight management for people living with mobility‑limiting conditions, intellectual disabilities or severe mental illness: a qualitative evidence synthesis.
The Cochrane database of systematic reviews·2026
Same journal
Non-pharmacological interventions for anxiety and depression in Parkinson's disease.
The Cochrane database of systematic reviews·2026
Same journal
Biologic drugs for induction and maintenance of remission in Crohn's disease: a network meta-analysis.
The Cochrane database of systematic reviews·2026
Same journal
Preconception and first-trimester metformin for improving pregnancy outcomes in women with polycystic ovary syndrome.
The Cochrane database of systematic reviews·2026
Related Experiment Video
Updated: May 30, 2026
05:02
Comparing Bibliometric Analysis Using PubMed, Scopus, and Web of Science Databases
Published on: October 24, 2019
The Cochrane Library is changing
1Cochrane Editorial Unit, Cochrane, London, UK.
The Cochrane Database of Systematic Reviews
|August 12, 2011
Summary
No abstract available in PubMed .