The Monster Study

Twenty two orphan children were used as part of a stuttering experiment in Davenport, Iowa. Wendell Johnson led the experiment, choosing one of his graduate students at the University of Iowa, Mary Tudor, to run the program where the children were broken up into two groups. One groups was given positive speech therapy while the other group received negative speech therapy. Children in the negative therapy group, who had no speech problems, developed problems with their speech following the experiment.
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