GDO-R Workshop Pricing

The Gesell Developmental Observation-Revised (GDO-R) assessment system has been updated to utilize strand scoring and performance levels, as well as to include new material that will make each administration more efficient and user-friendly.

The in-depth training is offered at sites across the nation for new and experienced users alike. 

Choose from a variety of workshops and recertification courses available:

Individual Participants

    • GDO-R for 2 ½-6 Year Olds $549.00 (3-days)
    • GDO-R for 6-9 Year Olds $249.00 (webinar only; Prior completion of 2 ½-6 Year Olds required)
    • GDO-R for 2 ½-9 Year Olds $719.00 (3-days + webinar package)
    • Gesell Ages and Stages Introduction $99.00 (In depth professional development opportunity. Attend the first day only of GDO-R for 2 ½-6 Year Olds and learn the history and foundation of Gesell’s developmental approach)

Certificates of completion are provided for participants who attend all three days of the workshop. 


Private GDO-R Group Workshops

Schools and early childhood education centers are welcome to schedule a private group training for their staff only. This can serve as a team building PD experience or because it is more cost efficient for a large group or because our currently scheduled dates do not match your needs. We are available to schedule a private GDO-R training for you, at your site.

The Private GDO-R Group Rate:

  • $4,490 plus travel fees of the trainer, for the first 10 participants;
  • and an additional $395 for each additional participant over 10.

To schedule a Private GDO-R training for your group, please contact Erin Akers, Director of Education and Development

 Certificates of completion are provided for participants who attend all three days of the workshop. 


Recertification Workshops – required every 5 years to maintain certification:

  • GDO-R Recertification Course for 2 ½-6 Year Olds $449.00 (3-days)
  • GDO-R Recertification Course for 2 ½-6 Year Olds $249 (Webinar)
  • GDO-R Recertification Course for 6-9 Year Olds $249.00 (Webinar Only)

In order to be eligible for Recertification, you must have completed a previous GDO-R training within the last 5 years. Due to evolving research and responsive adjustments to our workshop, individuals trained more than 5 years prior to the date of their recertification must register as a beginner participant, and are not eligible for recertification discounts or programs.

Certificates of completion are provided for participants who complete the full re-certification training requirements.