In each experiment , they manipulated the effort seemingly invested in the objects ' creation .
They conducted three experiments in which participants made judgments of quality -- a poem in Experiment 1 , paintings in Experiment 2 , and medieval arms and armor in Experiment 3 .
In each experiment , participants manipulated the effort seemingly invested in the objects ' creation .
They conducted three experiments in which participants made judgments of quality -- a poem in Experiment 1 , paintings in Experiment 2 , and medieval arms and armor in Experiment 3 .