Valerie worked as a senior principal speech-language pathologist at the Singapore General Hospital for 16 years before moving to private practice. She has more than 20 years of experience working in the field of stuttering, and has successfully treated many children who stutter using the Lidcombe Program. She continues to teach stuttering at the National University of Singapore. Valerie completed her PhD at the Australian Stuttering Research Centre in 2007. Her research interests include assessment and treatment of bilinguals who stutter, and has ongoing research grants, and publications in scientific journals and textbooks. She continues to supervise students and speech therapists in stuttering both clinically and in research projects.