Milestones Psychology
Helping families reach new milestones

Alexandra Barnett

Alexandra Barnett


Alexandra Barnett, PhD

Licensed Clinical Psychologist 


When children improve their capacity to become better listeners, patient communicators, and more courageous, independent, and empowered versions of themselves it can seem as if magic happened. My past decade of experience in this field has shown me that much more than magic is at play here. That is why I have dedicated my career to practicing evidence based work in a welcoming space where families can make real and lasting changes for children with behavioral and internalizing challenges.

As one of few Parent-Child Interaction Therapy (PCIT) Level 2 Trainer candidates in the country, I am incredibly proud to provide this gold standard treatment originally created for children with behavioral issues by training and coaching families in the moment. By helping families master each step along the way in this program and its adaptations it is most rewarding to see how families rebuild their parent child relationship and successfully manage what once were consuming discipline challenges or issues of anxiety. My certification in this area also equips me to train and supervise our in-house clinicians and outside mental health professionals.

When practicing evidence based work, assessment and ongoing tracking is crucial. At Milestones, I am fortunate to conduct neuropsychological evaluations as part of a strong and unique assessment team. We are trained to comprehensively detect each child’s unique profile of strengths and weaknesses, create detailed recommendations, and advocate for appropriate services through our partnerships and knowledge of the inner workings of schools.

Making generalizable and lasting change in the lives of children is truly a team effort. In partnership with families, I work collaboratively to determine which team players to incorporate on each case. In understanding the impact of teachers on children’s daily experiences, I conducted the first randomized control trial of Universal Teacher-Child Interaction Training (TCIT-U) in partnership with Chicago Head Start preschools. This promising program brings the foundational techniques of PCIT into the classroom to train and coach classroom teachers in behavior management and social-emotionally informed techniques to reinforce adaptive behaviors and decrease disruptions. I have been invited to present numerous times across the country to share my clinical and school based work.


Parent-Child Interaction Therapy (PCIT)

Parent Management Training (PMT)

Cognitive Behavioral Therapy

Neuropsychological Evaluations

Teacher-Child Interaction Training (TCIT)

School Consultation


Conducted the first pilot study with random assignment of Universal Teacher-Child Interaction

Training (TCIT-U)

Postdoctoral Fellowship at Kurtz Psychology

Predoctoral Clinical Intern at Columbia University Medical Center, New York Presbyterian, Morgan Stanley Children’s Hospital

Coach for parents on Mighty Mouth Kids for Selective Mutism at Kurtz Psychology

Mental Health Consultant for Chicago Head Start Preschools

Group Leader and Trainer for NYC Department of Education teachers and social workers with Parent Corps, a preschool parenting and school-based program through NYU Langone Medical Center