The 1-hour simulator assessment will be preceded by a 1.5-hour orientation session. The simulator used is the Rehab Evolution, manufactured by Develter Innovation.

The on-road evaluation will be conducted using a dual-control vehicle, with a certified driving instructor and an occupational therapist. The evaluation will last one hour.

Driving performance on the simulator will be evaluated, on the one hand, using data on speed, reaction time, following distance, and braking distance collected during each test. Additionally, the total driving error score will be broken down into 7 sub-scores, allowing for the evaluation and comparison of driving error types and the levels involved in relation to Michon's model:

• Control of vehicle controls,
• Lane keeping and speed regulation,
• Vehicle control during turns and speed regulation,
• Visual scanning and divided attention while driving, level 1,
• Visual scanning and divided attention while driving, level 2,
• Executive functions level 1: interactions with traffic,
• Executive functions level 2: management of critical situations. This scale was developed specifically for the study. Scores on the scale range from 0 to 100; the lower the score, the better the teenager's driving performance on the simulator.

During the on-road evaluation, the TRIP scale (Test Ride for Investigating Practical fitness to drive) will be used and completed immediately after the test by an occupational therapist. This test allows for the standardization and quantification of driving performance using a list of behavioral items: lane position, following distance, speed, visual scanning, traffic signals, passing, anticipation, communication, special situations, vehicle controls, and overall impressions. Each item is quantified using a score on a scale of 1 to 4 (1: insufficient, 2: questionable, 3: sufficient, 4: good). The reliability of this test has already been demonstrated in several studies involving various populations, such as older adults, stroke survivors, and individuals with Huntington's disease. This grid also allows for the calculation of scores corresponding to the different hierarchical levels of Michon's model.

Participants' anxiety levels during on-road and simulator driving tests will be assessed using the STAI-Y (State-Trait Anxiety Inventory Y-form). It will be administered and completed before and after each assessment, both on-road and in the simulator. The general STAI-Y is a questionnaire designed to assess momentary anxiety and trait anxiety. For this study, only the state scale of the STAI-Y will be used. The state anxiety scale comprises 20 items and assesses the feelings of apprehension, tension, nervousness, and worry that the subject experiences at the time of the assessment.

The STAI-Y scale ranges from 20 to 80. The higher the score, the greater the level of anxiety.

Assessment of executive functions and attention using the Attention Assessment Test (TAP) with the following subtests: "phasic alerting," "divided attention," "go/no go," "working memory," and "visual scanning", the Trail Making Test (TMT) assessing mental flexibility, the Stroop selective attention test assessing the ability to inhibit automatic processes, and the Wisconsin Card Sorting Test (WSCT-modified), which assesses abstract reasoning and the ability to change cognitive strategies in response to changes in the environment.