Quiz: Psychology results in top journals - can you guess which ones were true, and which didn't replicate?

Can you guess which psychology experiments had correct findings and which ones were bogus, just from reading a brief description of their results? Depending on how long you want to play, we'll describe 10, 15 or 21 recent findings published in the world's top journals - Nature and Science - and you'll have to guess whether a repeat of the same experiment, with a much larger sample size, got the same result. Before starting this project - whch was published in Nature in August 2018 - the people who organised these 21 replications asked expert psychologists and gamblers to predict which results would hold up.

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