Researchers in Germany and Australia have created a simple but powerful tool to detect nanoplastics—tiny, invisible particles ...

NASA's hosting a teleconference on Wednesday (Sept. 10) to discuss a new rock analysis from the Perseverance Mars rover. Here's how to tune in.

A recent study demonstrated how analytical techniques can be used to differentiate between different types of whiskey.

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A new study reveals that the U.K.'s gender pay gap is larger than official estimates because the data used to calculate it is ...

An appropriate sample renders the research more efficient: Data generated are reliable, resource investment is as limited as possible, while conforming to ethical principles. The use of sample size ...

Sample size calculation for trial design Sample size calculations arise in planning a study. It is one of the most important aspects of any design since it drives study timelines and the cost of ...

Clinical Trial related calculation: descriptive statistics, power and sample size calculation, randomization.

Considering the importance of sample size, its determination and justification in all kinds of epidemiological or medical research studies, we propose simple and non-technical explanation to the ...

Charan, J. and Biswas, T. (2013) How to Calculate Sample Size for Different Study Designs in Medical Research Indian Journal of Psychological Medicine, 35, 121-126.

In research, sample size is crucial in obtaining accurate results and making reliable conclusions. An appropriate sample size ensures that the study has sufficient statistical power to detect ...