The first step in calculating the sample size is to define the population from which you want to draw your sample. This could be a group of people or items with a specific set of characteristics. Step ...

Wondering how many people in the United States have a smartphone? If you poll 20 people on the street, your survey won’t be representative of the entire American population. But if you just want to ...

Sample size, namely the number of subjects that should be included in a study to reach the desired endpoint and statistical power, is a fundamental concept of scientific research. Indeed, sample size ...

You are about to do the fourth cycle of an audit for compliance to a particular program. From the previous three cycles, compliance rates have been around 75%, with ...

ABSTRACT: Introduction: The coronavirus disease (COVID-19) vaccines provided renewed hope in the fight against the COVID-19 pandemic. To promote extensive vaccination coverage, it is imperative to ...

ABSTRACT: BACKGROUND: Pain management following caesarean section still remains a challenge in our environment. Most potent analgesics are either not readily available or expensive. Diclofenac ...