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Related Concept Videos

Barriers to Effective Communication I01:30

Barriers to Effective Communication I

A communication barrier is any distortion or interruption during a conversation, resulting in miscommunication of the message. A good communicator should know these barriers and continuously check for the listener's understanding by obtaining feedback.
Communication barriers include the following:
Physiological barriers: They are limitations caused by a person's health condition or disability, such as hearing loss, poor eyesight, illness, or unconsciousness. An example to overcome this barrier...
Barriers to Effective Communication II01:21

Barriers to Effective Communication II

The barriers to effective communication also include cultural barriers, semantic barriers, gender barriers, and time constraints.
Cultural barriers:
Differences in values, beliefs, religion, knowledge, and tradition can significantly impact communication. Awareness of nonverbal cues is critical, especially when conversing with a patient from a different culture. What appears appropriate in one culture may be inappropriate in another.
Semantic barriers:
As a result of their tendency to use...
Reliability and Validity01:29

Reliability and Validity

Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.
Multiple Comparison Tests01:13

Multiple Comparison Tests

Multiple comparison test, abbreviated as MCT, is a post hoc analysis generally performed after comparing multiple samples with one or more tests. An MCT will help identify a significantly different sample among multiple samples or a factor among multiple factors.
It would be easy to compare two samples using a significance alpha level of 0.05. In other words, there is only one sample pair to be compared. However, it would be difficult to identify a significantly different sample if the number...
Physiological Barriers01:25

Physiological Barriers

Physiological barriers are semi-permeable cellular structures restricting drug diffusion into intracellular compartments and tissues. There are six types of physiological barriers: blood endothelial, cell membrane, blood-brain, blood-cerebrospinal fluid (CSF), blood-placenta, and blood-testis barriers.
The blood endothelial barrier is the most porous of these. It allows all small ionized, un-ionized, and lipophilic molecules to pass through the endothelial lining into the interstitial space...
Strategies for Assessing and Addressing Confounding01:25

Strategies for Assessing and Addressing Confounding

Confounding is a critical issue in epidemiological studies, often leading to misleading conclusions about associations between exposures and outcomes. It occurs when the relationship between the exposure and the outcome is mixed with the effects of other factors that influence the outcome. Given that, addressing confounding is of high importance for drawing accurate inferences in research.
Confounding can be addressed at both the design phase of a study and through analytical methods after data...

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Related Experiment Video

Updated: Jun 24, 2026

Computerized Adaptive Testing System of Functional Assessment of Stroke
05:21

Computerized Adaptive Testing System of Functional Assessment of Stroke

Published on: January 7, 2019

Cascade Testing Barriers: How to Overcome?

Tiffany Lim1, Rebecca Caeser1,2,3, Joanne Ngeow1,3

  • 1Cancer Genetics Service, Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore.

International Journal of Cancer
|June 23, 2026
PubMed
Summary
This summary is machine-generated.

Cascade testing for hereditary cancer syndromes is crucial for prevention but faces low uptake. Addressing individual, provider, and system barriers is key to improving this vital cancer screening strategy.

Keywords:
barrierscascade testinggenetic testinghereditary cancer

Related Experiment Videos

Last Updated: Jun 24, 2026

Computerized Adaptive Testing System of Functional Assessment of Stroke
05:21

Computerized Adaptive Testing System of Functional Assessment of Stroke

Published on: January 7, 2019

Area of Science:

  • Genetics and Genomics
  • Oncology
  • Public Health

Background:

  • Hereditary cancer syndromes represent 5%-10% of all cancer cases.
  • Identifying pathogenic variants in individuals allows for cascade testing of at-risk relatives, enabling early surveillance and risk-reducing interventions.
  • Despite clear benefits, cascade testing uptake remains low globally, averaging only 15%-30%.

Purpose of the Study:

  • To review the facilitators and barriers influencing cascade testing uptake for hereditary cancer syndromes.
  • To outline strategies for strengthening the implementation and effectiveness of cascade testing.

Main Methods:

  • A comprehensive review examining facilitators and barriers to cascade testing.
  • Analysis of challenges at individual, provider, and health system levels.
  • Identification of strategies to overcome identified barriers.

Main Results:

  • Individual-level barriers include psychosocial concerns (stigma, discrimination, fear), limited health literacy, and cultural norms.
  • Provider-level barriers involve confidentiality issues, knowledge gaps among non-genetics professionals, and a shortage of genetic counselors.
  • Health system-level barriers encompass high costs, fragmented pathways, administrative inefficiencies, and legal gaps concerning genetic discrimination.

Conclusions:

  • Addressing individual, professional, and structural barriers through multi-level, context-specific solutions is essential for increasing cascade testing uptake.
  • Culturally sensitive communication, integrated genetic services, professional upskilling, and supportive health policies are vital.
  • Strengthening cascade testing is key to advancing cancer prevention and precision medicine globally.