This study investigated the effects of need for cognition (NFC) and narrative complexity on the spoiler effect. In an online experiment, 359 participants read either spoiler-containing or spoiler-free synopses before reading and evaluating a short story. Two types of stories were used: simple and complex. The results showed that in the spoiler-free condition, a higher NFC led to better comprehension and reduced cognitive load. Conversely, in the spoiler-present condition, the influence of individual differences on the NFC disappeared. Spoilers did not directly affect enjoyment ratings; however, both cognitive load and comprehension influenced these ratings.
