Here, intelligence is taken to mean scores from psychometric tests of cognitive functions. This essay describes how cognitive tests offer assessments of brain functioning--an otherwise difficult-to-assess organ--that have proved enduringly useful in the field of health and medicine. The two "consequential world problems" (the phrase used…

Changes in thinking skills are commonly experienced by older adults, though large variation exists. Such changes are one of the top concerns of people as they get older. Public perceptions of those changes could be used to effectively communicate with them about ways to improve their thinking skills. This study explored people's views about…