Index of Recent Intelligence Articles
10/4/2003: New Developments in "Intelligence Boosters"
8/19/2003: Boosting Your IQ
9/23/2002: I'm still at it (but see "Mulling the Miller Analogies-
9/19/2002: The Adult Termites and the CMT-A.
9/4/2002: Measuring Adult IQs: The Terman Concept Mastery Test - (CMT - A)
9/2/2002: Is the practical ceiling on the Mega Test an IQ of 177+ (43+ correct answers)?
8/12/2002: Update on "Mind Boosters"
8/12/2002: Here is a table comparing data from the norming of the 1937 Stanford-Binet IQ test with Gaussian and ln-normal predictions.
7/18/2002: Cognitive Decline with Aging
6/26/2002: Nobel Prizes
6/25/2002: The Conspiracy of Silence.
6/24/2002: The Army General Classification Test Scores
6/22/2002: Why This is Exciting!
6/21/2002: Plotting Plots
6/20/2002: On Regression to the Mean
6/15/2002: The Termites Grown Tall
6/12/2002: In reviewing Concept Mastery Test (CMT) invented for use in the Terman Study, I saw what hadn't registered on me before: the correlation between childhood IQs and scores on the CMT 30 years later is only 0.29! For example, the 48 CMT test-takers who had IQ scores of 170 or above as children averaged a raw score of about 156 on the CMT. On the other hand, 122 subjects scored between 160 and 200 on the CMT! Twenty-four of the childhood-170+ CMT takers had to score at or below 156. The other 24 170+ test-takers scored above 156, and some fraction of that 24 were part of the group of 122 who scored 160 or above. There were 118 adult test subjects with childhood IQs of 160 or above, so a number of adults in the 160-to-170 childhood-IQ range scored higher, as adults, than the children in the 170+ range.
Dr. Terman had a way of smoothly glossing over major disconnects.
6/11/2002: Steve Coy and Patrick Wahl have been good enough to write, and to correct a foot-in-mouth claim I made: that non-Gaussian distributions don't have standard deviations. Thanks, guys!
6/10/2002: Why I'm excited about this discovery.
6/9/2002: Are IQ Distributions Ln-Normal Rather Than Gaussian?
6/4/2002: Book Review of Amy Wallace' Biography of William Sidis: "The Prodigy".
5/29/2002: Can the Flynn Effect Dwindle As the IQ Rises?
What Is the Flynn Effect?
What Is Causing the Flynn Effect?
What Does the Flynn Effect Say About Pre-20th-Century Geniuses vs. Current Intellectual Leaders?
Could It Be That the Flynn Effect Only Operates for IQ's That Are Near the Average Value of 100?
5/24/2002: Re-Examining the Five Intelligence Articles
5/23/2002: Nature vs. Nurture
5/22/2002: A Picaresque Rogue's Gallery
5/2/2002:Five Articles Relating Neurosciences to Intelligence A reader has sent five intriguing articles presenting their authors' ideas regarding links between recent discoveries in mental mechanisms and the cornerstones of human intelligence. .".
4/12/2002: Last nights Primetime on ABC discussed the subject of a very rare disorder called hyperlexia . Hyperlexia refers to children--primarily boys--who are obsessed with reading and with symbols, at the expense of any interest in normal human relationships: e. g., with their mothers. Hyperlexics learn to read almost before they can talk. Later, other children tend to catch up with hyperlexics in reading ability, but the hyperlexics are still ill equipped to communicate with the world. (This differs from children with very high IQs who start ahead and stay ahead of other children.) Hyperlexia is a kissing cousin of autism.
3-7-2002: Mindboosters: You can find the material regarding " Mindboosters " using the Intelligence Site Map (above) and clicking on " Updated 3/2/2002: My Experiences with Mind Boosters