Eye-catching studies that didn't make the final cut:
Explaining differences in international tipping customs in terms of national personality types.
The evolutionary foundations of maths.
A survey of randomly controlled trials (RCTs) in psychology concludes: "that published RCTs focus on statistical significance tests ('Is there an effect or difference'), and neglect other important questions: 'How large is the effect' and 'Is the effect clinically important.'"
Helping patients generate alternative solutions to interpersonal problems may help prevent repeated self-harm.