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Stephen M. Edelson, PhD, is Research Associate, Autism Research Institute, San Diego, California
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Meredyth Goldberg Edelson, PhD, is Associate Professor of Psychology, Willamette University, 900 State Street, Salem, Oregon 97031
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David C. R. Kerr, was Student and Research Assistant, Willamette University, Salem, Oregon, at the time of this study
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Temple Grandin, PhD, is Assistant Professor of Animal Sciences, Colorado State University, Fort Collins, Colorado