If a short story's payoff is a twist ending, do open-access experiments show that telling the reader the twist in advance (a spoiler) ruins the story?

In one preregistered-target experiment (326 psychology students, six published twist-ending short stories) neither a full spoiler nor a thematic spoiler reliably changed self-rated enjoyment, suspense, fun, lasting impression, being moved or transportation, and a 2-minute delay did not either. The authors read the wider literature as mixed and call the strongest pro-spoiler result an outlier. A 2026 film-clip study with 76 viewers also found no drop in self-reported immersion from spoilers, but used a mid-film clip, not an ending. Together these show that secrecy alone is not shown to carry a twist's value for these readers, stories and measures; they do not show whether a twist is well built. Curator qualifications: All quotes and figures verified; the preregistration detail is confirmed (target n=300, achieved 326). The conflicting-evidence entry is the authors' own review of mixed earlier findings and was correctly not re-adjudicated: the cited papers are not open access. Label the literature disagreement as reported-by-authors (secondary), not verified conflicting evidence. Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

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