Dr. James McCaffrey presents a complete end-to-end demonstration of linear regression with pseudo-inverse training implemented using JavaScript. Compared to other training techniques, such as ...

Find out how much you know about the week’s local news, and see how you do against other Times Union readers. We’ll upload a new batch of questions Friday morning. Sign up for our news quiz email, and ...

What’s your purpose in life? It’s a daunting question. But your answer may say a lot about your well-being. Studies link a sense of purpose to better physical and mental health. But your purpose isn’t ...

Is there too much stress in your life? To find out, take this quiz, adapted from a scale developed by Peter Lovibond at the University of New South Wales. For the first 16 questions, please indicate ...

Can you spot the deepfake videos and AI images? Well, it’s not as easy as you think! Artificial Intelligence (AI) is fascinating technology that helps computers and machines learn and make decisions ...

Psychology Today's online self-tests are intended for informational purposes only and are not diagnostic tools. Psychology Today does not capture or store personally identifiable information, and your ...

Lipoprotein (a) is a low-density lipoprotein that transports cholesterol in the blood. The lipoprotein (a) test — or Lp(a) test — determines the level of this lipoprotein in the blood, and its results ...

Testing for meningitis may include a physical exam, blood tests, bacterial cultures, imaging, and a spinal tap for cerebrospinal fluid testing to confirm the diagnosis. Seek emergency care for severe ...

January 30, 2026 • When the news gets too heavy, the quiz is forced to turn to pop culture questions — so there are a lot this week. Let's see how you do!