A few intelligence researchers are mentioned regularly in my articles on personal intelligence and in the book “Personal Intelligence.” Here are pictures of some of them. (There are, of course, many more eminent intelligence researchers). I’ve designed this photo gallery so that you click on the name to see the photo. (The photo opens in another window on a site which may also be of interest).

In rough chronological order…

Alfred Binet engaged in groundbreaking work at the turn of the 20th century in France, developing the first practical intelligence test with his colleague Theodore Simon. Click for photo of Binet. (Simon photo unavailable).

Charles Spearman proposed that there existed a hierarchy of intelligences, and that there was an overall general intelligence or g that characterized a person’s intellect. Click for photo.

In the 1950’s, David Wechsler persuaded psychologists that a mechanical intelligence–or “performance intelligence,” as he named it, might exist and be important to measure. Click for photo.

In the 1980’s Robert Sternberg, of Yale University was an influential advocate of multiple intelligences (click here for photo). For example, he and his colleague, Richard K. Wagner (click here for photo), advocated for a practical intelligence.

Also in the 1980’s, Howard Gardner engaged the nation’s imagination with the idea of a new group of seven or eight “multiple” intelligences. Click for photo.

In 1990, John B. Carroll, then a professor emeritus at the University of North Carolina, proposed a three-strata model of intelligence that integrated a great number of research findings of the time. At the top was Spearman’s g, in the middle were broad intelligences, and at the bottom more specific intelligences. Click for photo.

For a more extensive list of intelligence researchers of the 20th century (but still far from all the shining stars), visit Jonathan Plucker’s “Time Period Index,” on his Human Intelligence site.