Experiment design: psychology
Diederik Stapel, a Dutch social psychologist was approached by another colleague of his at Tilburg, Ad Vingerhoets, who asked Stapel to help him design a study to understand whether exposure to someone crying affects empathy. Stapel came up with what Vingerhoets told me was an "excellent idea." They would give elementary-school children a coloring task in which half the kids would be asked to color an inexpressive cartoon character, while the other half would have to color the same character shown shedding a tear. Upon completing the task, the children would receive candy and then be asked if they were willing to share the candy with other children -- a measure of pro-social behavior.