What the research says, not what the internet repeats.
Relationship science is one of the most misquoted fields in popular media. Findings from small samples get repeated until they harden into folk wisdom — the 55/38/7 communication rule, the seven-year itch, the idea that opposites attract. Most of these are either overstated or straightforwardly wrong.
The findings that do replicate are less catchy but more useful. Perceived partner responsiveness predicts satisfaction better than similarity. Relationship-specific beliefs matter more than personality traits. The strongest predictors of longevity are behavioural — how conflict is handled, how bids for attention are received — rather than demographic.
This collection tracks the primary literature: what has replicated, what has not, where the field is genuinely uncertain, and how to read a study before reorganising your life around a headline.