BMJ

Reliability and validity testing of a single-item physical activity measure

1 British Heart Foundation National Centre for Physical Activity and Health, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK 2 School of Population Health, ...
MediaPost

Reliability Vs. Validity

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 ...
BMJ

Reliability and validity of measures taken during the Chester step test to predict aerobic power and to prescribe aerobic exercise

Objectives: To evaluate the reliability and validity of measures taken during the Chester step test (CST) used to predict VO 2 max and prescribe subsequent exercise. Methods: The CST was performed ...
Psychology Today

Measurement Validity Explained in Simple Language

In my previous blog post, I noted that reliability and validity are two essential properties of psychological measurement. Measures of intelligence, personality, vocational interests, and so forth ...
National Academies of Sciences%2c Engineering%2c and Medicine

Scientific Approaches to Understanding and Maximizing the Validity and Reliability of Eyewitness Identification in Law Enforcement and the Courts

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 ...