Discover how to determine the ideal percentage of a population for a representative sample to ensure accurate data analysis with minimal sampling error.

The letter argues that PPS has deprived many affected community members of the opportunity to participate in the seismic ...

Objectives To investigate the incidence and determinants of glaucoma in an elderly Chinese population, and clinical, mental health and economic impacts. Design This nationally representative, ...

Introduction Sacroiliac joint dislocations are caused by high energy trauma and commonly treated with the iliosacral screw fixation or the anterior plating of the sacroiliac joint (SIJ). However, ...

Objective: Mental illness is an important public health concern, often starting early in life and particularly impacting children from low-and middle-income countries. Our aims were to 1) determine, ...

Objectives To examine the prevalence of hypertension and access to related healthcare services among rural residents of Mumbwa district in Zambia. Design Cross-sectional study with probability cluster ...

We know it's not easy to write an obituary. You're probably grieving, and it can be hard to know exactly what's important to include or what to say to honor your loved one's memory. Take a deep breath ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J. Brock is a CFA and CPA with more ...