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Ethics in Research01:56

Ethics in Research

22.9K
Today, scientists agree that good research is ethical in nature and is guided by a basic respect for human dignity and safety. However, this has not always been the case. Modern researchers must demonstrate that the research they perform is ethically sound.
22.9K
False Memories01:18

False Memories

71
False memories represent a cognitive distortion in which individuals recall events that did not happen, or remember them in an altered form. This phenomenon highlights the brain's constructive nature in processing and recalling memories, emphasizing that memory is not a perfect representation of past events but rather a dynamic reconstruction influenced by various factors.
One primary source of false memories is misattribution, where individuals incorrectly associate external information...
71
Naturalistic Observations02:30

Naturalistic Observations

15.4K
If you want to understand how behavior occurs, one of the best ways to gain information is to simply observe the behavior in its natural context. However, people might change their behavior in unexpected ways if they know they are being observed. How do researchers obtain accurate information when people tend to hide their natural behavior? As an example, imagine that your professor asks everyone in your class to raise their hand if they always wash their hands after using the restroom. Chances...
15.4K
Archival Research01:40

Archival Research

15.9K
Some researchers gain access to large amounts of data without interacting with a single research participant. Instead, they use existing records to answer various research questions. This type of research approach is known as archival research. Archival research relies on looking at past records or data sets to look for interesting patterns or relationships. For example, a researcher might access the academic records of all individuals who enrolled in college within the past ten years and...
15.9K
Drugs Affecting Neurotransmitter Synthesis01:29

Drugs Affecting Neurotransmitter Synthesis

1.3K
Drugs affecting neurotransmitter synthesis can impact the adrenergic neuron and the synthesis of neurotransmitters. For example, α-methyltyrosine and carbidopa target specific enzymes involved in catecholamine synthesis. α-methyltyrosine inhibits the enzyme tyrosine hydroxylase, which converts tyrosine into dopamine. By blocking this enzyme, α-methyltyrosine reduces dopamine production and other catecholamines. Carbidopa, on the other hand, inhibits the enzyme dopa decarboxylase,...
1.3K
Bias01:22

Bias

3.7K
Bias refers to any tendency that prevents a question from being considered unprejudiced. In research, bias occurs when one outcome or answer is selected or encouraged over others in sampling or testing. Bias can occur during any research phase, including study design, data collection, analysis, and publication.
In statistics, a sampling bias is created when a sample is collected from a population, and some members of the population are not as likely to be chosen as others (remember, each member...
3.7K

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Video Experimental Relacionado

Updated: Jun 6, 2025

Author Spotlight: Eco-friendly Photoluminescent Textile Authentication with Curcumin
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Author Spotlight: Eco-friendly Photoluminescent Textile Authentication with Curcumin

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Los documentos falsos ponen en peligro las síntesis de la investigación

Holly Else

    Science (New York, N.Y.)
    |November 28, 2024
    PubMed
    Resumen

    Las revisiones sistemáticas se enfrentan a importantes desafíos para extraer conclusiones generales de múltiples estudios. Las limitaciones metodológicas amenazan la confiabilidad de la síntesis de evidencia en diversas investigaciones.

    Área de la Ciencia:

    • Metodologías de síntesis de las pruebas
    • Metanálisis y prácticas de revisión sistemática
    • Integridad de la investigación científica

    Sus antecedentes:

    • Las revisiones sistemáticas son cruciales para resumir la evidencia, pero se enfrentan a una complejidad creciente.
    • La heterogeneidad de los estudios y los datos presenta desafíos significativos para la extracción de conclusiones generales.
    • Los posibles sesgos y inconsistencias metodológicas pueden socavar los resultados de la revisión.

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