Group A: The Experimental Group will receive the 8-week evidence-based PWC skills training using the IndieTrainer System following T0 baseline testing

Group B: The Wait List Control Group will receive the 8-week evidence-based PWC skills training using the IndieTrainer System following T2 testing

The IndieTrainer system will be used to provide the power wheelchair (PWC) skills training sessions. The IndieTrainer is comprised of a mobility device and an array of video-based gamified training modules designed to facilitate PWC training. The IndieTrainer mobility device temporarily converts a manual wheelchair into a powered wheelchair, thereby allowing children to remain in their own manual wheelchair and use their own custom seating system during power wheelchair skills training activities. Principles outlined in the Assessment of Learning Powered mobility use (ALP) Facilitating Strategies for each ALP Assessment phase will guide the intervention sessions.

This outcome will be assessed using each participant's score (from a low of Phase 1 to a high of Phase 8) on the Assessment of Learning Powered mobility use. The Assessment of Learning Powered mobility use (ALP) is a process-based measure detailing 8 phases of learning (Phase 1 - Novice to Phase 8 - Expert) within 3 stages: Stage 1 - the Introvert Stage where the child focuses on exploring cause and effect within the function of the power mobility device; Stage 2 - the Explore Sequencing Stage where the child focuses on how to sequence the operations to maneuver the power mobility device; and Stage 3 - the Extrovert Stage where the child is focused on using the power mobility device in daily life. Higher scores therefore indicate a better outcome.

This outcome will be assessed using the Wheelchair Skills Checklist, a task-based measure that evaluates a child's performance of 7 specific power mobility skills using a 3-point ordinal scale from 0-2 where a score of "0" indicates the participant Does Not Perform the skill, a score of "1" indicates that the skill is Emerging, and a score of "2" indicates the participant Performs the Skill. Higher scores therefore indicate a better outcome.

This outcome will be assessed using the Canadian Occupational Performance Measure to identify, prioritize, and rate parent/caregiver perceptions of children's performance of power wheelchair skills. A total of 4-5 occupational performance issues in the area of power wheelchair skills will be identified and scored on a 1-10 scale, where a "1" is the lowest score and a "10 is the highest score, for both the caregiver's perception of the child's performance and their satisfaction with the child's performance.