A new paper published in The Gerontologist provides the most comprehensive scientific response to date addressing recent ...

Ethnographic research, such as observing the setup of a catheter, often leads toideation. But it can also lead to significant device design. In 2001, William Reese and I wrote an article about the use ...

There is a distinction that one learns about on the first day of a course in psychological research methods. It is the difference between internal and external validity. Internal validity is ...

Nutrition screening should be initiated on hospital admission by non-dietitians. This research aimed to validate and assess the reliability of the Canadian Nutrition Screening Tool (CNST) in the ‘real ...

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 ...