Across four preregistered experiments with 770 participants, people rated sources as more credible when their statements had been repeated, and that boost carried over to new statements from the same sources.
Across about 1,000 languages, those that pack more information into each word were spoken faster, and their conversations covered a conceptually narrower range of topics, discussed in greater depth.
A review of brain imaging and whole-body measurements in mammals finds that solving cognitive tasks usually adds little or nothing to overall energy use, because keeping the resting brain running is already about as costly.
In an experiment with 206 law students, AI highlighting of legal complaints cut task time by 29.7% with accuracy unchanged, while AI summaries saved no time and combining both tools was slower than highlighting alone.
Using pitch-tracking data and police reports for nine MLB home counties from 2009 to 2019, an economist found domestic violence reports rose after losses in games with highly inaccurate umpires, driven by missed calls that favoured the opponent.
Smartphone tracking of up to 1,229 University of Texas students linked political identity to 18 of 61 everyday behaviors, mostly in leisure, but fellow students misjudged 76% of those behaviors and overestimated the divide.
In an Oxford University Press chapter, psychologist Jens Gaab argues that psychotherapy and open-label placebos are close relatives, noting that therapy's specific advantage over placebo controls in depression is small and only marginally above the threshold for a clinically meaningful difference.
Between 2012 and 2022 the ideal number of children in rich countries fell from 2.42 to 2.31, and plans to have a child within three years from 28% to 21%. The fading belief that children are needed for fulfillment contributed most.
An archaeologist identified 659 diagnostic and probable dice at 57 North American sites, including 20 from 12,000-year-old Folsom deposits, predating the earliest known Old World dice by more than 6,000 years.
An economic model shows why influencers endorse only on-brand products while building awareness, then switch to promoting almost anything once a large share of potential followers know them. Celebrities sell out sooner, and viral platforms can flip the pattern twice.