What is observational: Definition and 2 Discussions

Observation in the natural sciences is an act or instance of noticing or perceiving and the acquisition of information from a primary source. In living beings, observation employs the senses. In science, observation can also involve the perception and recording of data via the use of scientific instruments. The term may also refer to any data collected during the scientific activity. Observations can be qualitative, that is, the absence or presence of a property is noted and the observed phenomenon described, or quantitative if a numerical value is attached to the observed phenomenon by counting or measuring.

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  1. Mordred

    A Hubble tension -- any resolution?

    A few years back there was an issue called the Hubble tension where the observations were nor matching up to predictions when looking at the Early and late time data. I had heard that one possible explanation is due to our being in an underdense region but have also read a counter paper to...
  2. gleem

    I Observational Studies: What to Believe

    The behavioral sciences use statistical methods to link behavior to specific outcomes. Medical science also tries to find relationships between various behaviors and their health effects. Such studies use statistical methods unfamiliar to most physical scientists. Regularly, studies with the...
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