Dr. leno is a researcher who wishes to measure children's creativity levels. to do this, he asks children how many imaginary friends they have and considers this to be a measure of their creativity. a second researcher, dr. letterman, disagrees that this is a measure of creativity and instead believes that the number of imaginary friends a child has is an indicator of level of mental disturbance. dr. letterman believes dr. leno's measure of creativity has a problem with its: