21. Mussen was the main editor of the four-volume " Handbook of Child Psychology ." 22. At the time, Paris was a center of innovation in child psychology and education. 23. Newman attended University of The Incarnate Word and received a degree in child psychology . 24. He was a pioneer in child psychology and educational inquiry. 25. Willett's sendups of private schools and child psychology are merciless. 26. They'll be studying child psychology and toy development throughout history. 27. She earned a master's degree in child psychology from Clark University in Worcester, Mass. 28. The film is based on child psychology and extra-marital affairs. 29. Child psychology and pedagogy for nationally cohesive education remained a central goal of the discipline.30. The Los Angeles-based casting director Sally Stiner, who has a background in child psychology , agrees.