1. The Influence of Professional Development on Informal Science Educators' Engagement of Preschool-age Audiences in Science Practices Open Access Author: Crowl, Michele Marie Title: The Influence of Professional Development on Informal Science Educators' Engagement of Preschool-age Audiences in Science Practices Graduate Program: Curriculum and Instruction Keywords: informal science educatorsprofessional developmentpreschool-age audiences File: Download Crowl_Dissertation_Curriculum_and_Instruction_2016.pdf Committee Members: Julia Diane Plummer, Dissertation Advisor/Co-AdvisorCarla Zembal Saul, Committee Chair/Co-ChairHeather A Zimmerman, Committee MemberChristopher Palma, Special Member