3 sources filed · EN 3
Overall essay quality was higher with the scaffold (mixed-model b = 0.089, p = .008) and stayed higher in Task 2 when neither group had it (b = 0.070, p = .037).
64.6% vs 45.6%correct topic recall about three days later, scaffolded vs control (Task 1, complete cases)
Without the sentence, 90.1% of choices matched the stale file: 86.4% for Claude Code, 93.9% for Codex CLI.
90.1%share of agent choices (649 of 720) that followed a stale instruction file over the existing code
During the staggered period, 59 of 75 early-access students and 0 of 78 later-access students used the tools.
153students with grade and usage records (75 early access, 78 later access)
3 sources filed · EN 3
Consumers paid $0.37 on average for a human-directed game over its basic version, and $0.47 for AI-designed games; a 10-cent gap, 0.31 SD.
$0.47 vs $0.37average willingness to pay for AI-designed vs human-designed games (gap 0.31 SD, p < 0.001)
Early access beat late access by 0.36 points (Hedges' g = 0.62, p = 0.018) and beat no AI by 0.49 points (g = 0.83).
0.62 standard deviationsdrop in expert-rated creativity when the same 15 minutes of AI access moved from search to selection
Generative AI raises the whole quality curve: at any minute, AI-assisted work scores higher than unaided work.
219professional and student artists in the experiment (168 treatment, 51 control)