One of the hardest things to do when you establish an experiment that requires the measurement of proteins, cytokines, or biomarkers is the selection of the appropriate assay kit. Product catalogs are ...

Those of us in the business of psychological measurement use the terms reliability and validity a lot. You've probably seen those terms on the Psychology Today website (they appear thousands of times) ...

Science has provided an increasingly clear picture of the inherent limits in human visual perception and memory that can lead to errors in eyewitness identification. While the law enforcement ...

[This article was first published in Army Sustainment Professional Bulletin, which was then called Army Logistician, volume 1, number 2 (November–December 1969), pages 8–11, 24–25.] “… in the process ...

Is the purpose of the new joint industry committee (JIC) about improving TV audience measurement quality or is it about gamesmanship? Is it even possible to validly measure viewing using alternative ...

As an IC designer focused on automotive applications, reliability is likely one of your top priorities. The components you develop need to withstand extreme environmental conditions, maintain ...

Muscle injury classification systems for hamstring injuries have evolved to use anatomy and imaging information to aid management and prognosis. However, classification systems lack reliability and ...

But what are reliability and validity exactly, how do we assess reliability and validity, and why are these properties of psychological tests so crucially important? In this and a following blog post, ...