The rhyme-as-reason effect is a cognitive bias where phrases or sayings are judged as more truthful when they rhyme. Experiments have shown that participants prefer rhyming phrases over non-rhyming counterparts, even when the content is identical, due to enhanced memorability and perceived accuracy. This preference can be attributed to the aesthetic qualities of rhyme and the ease of cognitive processing it provides.
In a study, the rhyming phrase "What sobriety conceals, alcohol reveals" was rated as more accurate compared to its non-rhyming alternative, despite both phrases carrying the same meaning.
To overcome this bias, individuals can consciously evaluate the content of sayings rather than being influenced by their form, focusing on logical reasoning and evidence.