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A major article by @timothycbates was just published in @ICAJournal showing that incentives make people more motivated when taking tests. But the higher motivation does NOT cause IQ to increase. And the finding was replicated (n=500 in 1st study; n = 1,237 in the replication).

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Working memory functioning is strongly correlated with fluid intelligence. So, does working memory training raise intelligence? In this study, the answer was no, even after the participants were paid to receive 40 hours of training across 2 years. Working memory training did

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Individual differences exist in spatial navigation, and a new study uncovered an important reason why. When testing people who had navigated through a virtual environment, visuospatial working memory (WM) had a correlation that was 8x(!) stronger with outcomes than verbal WM.

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"Are you smart?" A new study from Estonia asked children and adolescents to rate their own intelligence and take a non-verbal IQ test (the Raven's). The results indicated that children under the age of 10 cannot provide useful ratings of their own intelligence. A major reason is

RT @AlexTISYoung: I’ve been working with an IVF startup, @herasight, that has already screened hundreds of embryos. Today we come out of st….

RT @powerfultakes: ISIR 2025: Russell Warne describes his @RiotIQ online test, & his investigation about whether tempo (how quickly respond….

The final presentation of ISIR 2025 is @Russwarne, who is presenting on mental speed and response times on intelligence test questions.

Next presentation is Paul Westrick (College Board), who is presenting on whether the timing of taking the SAT impacts the correlation with college math grades. Westrick: Some students take the SAT earlier in high school (usually junior year, instead of senior year). Does taking.

Next presenter at ISIR 2025 is Al Mansor Helal (University of Arkansas) whose presentation is on college enrollment and selectivity outcomes for gifted students. His coauthor is @JonathanLWai. There is not much research on post-secondary outcomes from K-12 gifted programs. Helal.

Next event at ISIR 2025 is a presentation from Bill Revelle (Northwestern University), who is this year's lifetime achievement award winner. Revelle has been "dabbling" in intelligence for 60 years. He self-identifies as a personality researcher, but in his view "personality".

The last session of the morning is Jonathan Fries (University of Vienna), whose presentation is on intelligence and suicide ideation in older adults. His coauthors are @sndrbrltr and Jakob Pietschnig. Older adults are at high risk for suicide, especially when they see themselves.

Presenting now is @DamienMorris, whose presentation is called "Two concepts of meritocracy: Rescuing behavioural geneticists from politically repugnant conclusions." Morris recently published the first of a series of papers in "Twin Research and Human Genetics.". Morris: In one.

The next ISIR 2025 presentation is by Matt McGue (University of Minnesota), whose presentation is on the impacts of cognitive ability, personality, and childhood socioeconomic status on adult functioning in two longitudinal studies. McGue states that the mainstream views that.

This summary does not do justice to the talk. Lehmann says that a version of her remarks will be published in Quillette in the future.

Lehmann started college as an English major, and she was excited to read and discuss the great novels of the language. But after a while, they were studying TV shows and "The Invention of Heterosexuality." It felt like a bait-and-switch. She found a lot of the ideas "absurd.".

The first presentation of today at ISIR 2025 is from @clairlemon (founder of @Quillette), who is receiving the Constance Holden Award for Distinguished Journalism.