What should be the size of my sample of COPD patients to be sure that all categories of two different ordinal variables are represented?

27 February 2019 0 3K Report

This is an observational study on consecutive patients with moderate/severe COPD. Outcomes of interest: quality of life (4 levels) and dyspnea (5 grades).

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I got 02 moderator values defining Johnson-Neyman significance regions. Is it an error?

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Is there a powerful system for the security of the systems distributed on IoT systems?

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Please suggest a good text book for "Research Methodology in Life Sciences". Which book would be good for PhD Scholars?

Please provide Book Title and author name

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How Relativistic effects is one reason for lanthanide contraction?

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28 February 2021 5,415 1 View

Can anyone share his experience regards Smoothing in origin?

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25 February 2021 155 2 View

How to calculate battery consumption for IoT device?

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How can plant phytochemistry be included in discussions about whole plant traits?

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