Rewarding cognitive effort increases the intrinsic value of mental labor.

Proc Natl Acad Sci U S A · 2022 · PMC8812552 · PMID 35101919

Europe PMC DOI

hedged sentences

0.0010

closest p · 0.0× alpha

0.0830

boldest claim

The sentences

highly significantP = 0.001actually significant

Experiment 2e was conducted with a larger sample ( n = 500) and yielded a highly significant main effect for group, F (1, 497) = 10.25, P = 0.001, η p 2 = 0.020.

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marginally significantP = 0.083so close (0.05 < p ≤ 0.1)

The first four smaller samples ( n = 228, 255, 241, 233) yielded mixed results, with a marginally significant main effect for experimental group in Experiment 2a, F (1, 225) = 3.04, P = 0.083, η p 2 = 0.013, a nonsignificant effect for group in Experiment 2b, F (1, 252) = 0.10, P = 0.75, η p 2 = 0.0004, a significant main effect for group in Experiment 2c, F (1, 238) = 5.02, P = 0.026, η p 2 = 0.021, and a nonsignificant effect for group in Experiment 2d, F (1, 230) = 2.67, P = 0.10, η p 2 = 0.011.

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