To confirm that these differences were driven by the intrinsic value of social praise, we performed
a second imaging experiment in which the praise was withheld on a subset of trials.
Most of them were careful to point out that the revolutionary claim from the scientists involved in the
experiment, which used the BICEP2 telescope (for Background
Imaging of Cosmic Extragalactic Polarization,
second generation), must be confirmed by additional
experiments that could rule out alternative explanations.