In a textbook co-authored with Rosenhan, this man 
In a textbook co-authored with Rosenhan, this man suggested seven properties to classify abnormal behavior. This man proposed "preparedness" as an explanation for how animals could be conditioned to avoid certain things after just one trial, what he called the "sauce BÃ©arnaise phenomenon." The results of post-study questionnaires by Hiroto led this man to reformulate a previous theory of his, accounting for attributions people make about their situation. This man co-authored an alternative to the Diagnostic and Statistical Manual called Character Strengths and Values that provided a handbook for his "positive psychology" movement. Along with Steve Maier, he conducted experiments which found that dogs put in a situation where they could not prevent electric shocks were passive once given the chance to do so. For 10 points, name this psychologist who developed the model of "learned helplessness."
In a textbook co-authored with Rosenhan, this man suggested seven properties to classify abnormal behavior.
Martin Seligman