Psychological measurement and theory constitute a central endeavour in the modern scientific study of human behaviour and mental processes. This field explores the quantitative assessment of abstract ...

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) ...

The scientific study of both internal mental processes and observable behavior is known as psychology. It explains activities ...

Psychological distress measurement remains a cornerstone of contemporary mental health research and clinical practice. The development and refinement of reliable instruments, such as the K6 and K10 ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. In the early 1920s, the University of ...