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 ...

Introduction Migration is a complex global phenomenon, with millions of people relocating each year driven by various social or personal reasons. Among them, refugees and asylum seekers form a ...

The validity of the ACT in predicting college success has come under scrutiny in a new paper out by the National Bureau of Economic Research. The study, Improving College Performance and Retention the ...

From the perspective of score interpretation, the purpose of testing accommodations is to reduce the dependence of test scores on factors that are irrelevant to the construct that is being assessed.

Of 100 studies published in top-ranking journals in 2008, 75% of social psychology experiments and half of cognitive studies failed the replication test Psychology experiments are failing the ...

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 ...

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 ...

Improving the validity of your market research can increase the effectiveness of your marketing strategies. When you know what members of your target market are doing and what they want, you can ...