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 ...

A study published earlier this month on an alleged link between vaccines and autism has been removed from the public domain pending further investigation, according to Translational Neurodegeneration.

Self-report is often the only means of assessing historical exposure in epidemiologic studies. However, concerns about the validity of self-reported exposures arise when the exposures vary ...

A number of studies suggest that student evaluations of teaching are unreliable due to various kinds of biases against instructors. (Here’s one addressing gender.) Yet conventional wisdom remains that ...

An important mark of professional competence is a sophisticated and critical attitude toward the procedures that are used in the performance of professional functions. The best examples of social ...

Breast Cancer Care Quality in South Africa’s Public Health System: An Evaluation Using American Society of Clinical Oncology/National Quality Forum Measures The survey was sent to nearly 8,000 ...

Background Risk factors among overhead athletes have been investigated in many studies. The rotator cuff external rotator weakness is associated with an increased probability of substantial shoulder ...

Many colleges require standardized tests of applicants but fail to conduct research on whether the tests in fact predict college success and do so better than other tools, found to a new report from ...