Read on to learn more about what a t-test is, the different formulas used, and when to apply each type to compare means and ...

A new generation of aging tests is moving out of specialist labs and into everyday life, promising to tell you how old your ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

A polymerase chain reaction (PCR) test detects genetic material from a pathogen or abnormal cell sample. Ways of collecting samples include a nasal swab, a saliva swab, or taking a sample of blood.

A clean catch urine sample or specimen is one of the least invasive procedures for a urine culture or urinalysis. The clean catch method aims to prevent bacteria from the skin of the penis or vagina ...

A stool test is a diagnostic procedure that involves analyzing fecal matter, or poop, to check for signs of infection, inflammation, or disease. The specific analysis depends on a person’s symptoms ...

With home testing options increasing more than ever, you now also have the ability to test for kidney function within the comfort of your own home. Learn more about our four best picks for at-home ...