This newspaper had reported extensively on cheating, but hadn’t dug deeply into a more basic question: Just how good are the exams used to make critical decisions in schools? No one, it turned out, ...

The fall maintenance season is right around the corner. As you plan for it, you may be considering adding carbon monoxide (CO) testing to your services. If this sounds like you, there are improper ...

FEC (forward error correction), a critical component of many modern digital-communications applications, turns otherwise-unusable links into real and practical ...

The largest study to date of testing errors reported by family physician offices in the United States found that problems occur throughout the testing process and disproportionately affect minority ...

To err is to be human. But what claims can be made about your system’s analog to digital converter (ADC)? We will review the extent of our conversion error rate ...