Participants in this arm will receive SL-Unstuck immediately. The intervention includes 8 weekly 90-minute clinic-based group sessions with parallel groups for children and caregivers.

Children will receive the Unstuck and On Target (Unstuck) curriculum, a manualized cognitive-behavioral intervention that teaches executive functioning (EF) skills such as flexibility, emotional regulation, and goal-setting. Caregivers will attend concurrent Spanish-language sessions focused on understanding EF challenges and learning strategies to support their child's skills at home. Weekly home practice sheets in Spanish summarize each session and provide practical tips and activities. The program is designed to be neurodiversity-affirming and accessible to Spanish-speaking families.

The Executive Functioning Challenge Task deliberately tests a child's ability to utilize key executive functions like planning and flexibility by presenting scenarios that reveal potential areas of difficulty in their EF skills. The test yields Flexibility and Planning raw scores with a minimum of 0 and maximum of 8. Higher scores indicate greater impairment in executive functioning. A total executive functioning raw score is also calculated as the sum of planning and flexibility scores.

Values below represent the change in average raw scores from baseline to post-intervention for participating children.

Negative scores represent an overall decrease in executive functioning impairment (better outcome) while positive scores representing an increase in executive functioning impairment (worse outcome) from baseline to post when looking at the condition groups as a whole.

The Behavior Rating Inventory of Executive Function- Second Edition is a 63-item rating scale completed by caregivers to assess executive function impairment in children. T scores have a population mean of 50 and standard deviation of 10, with a minimum score of 30 and maximum score of 95. Scales assessed included the Behavioral Regulation Index, Emotion Regulation Index and Cognitive Regulation Index, together forming an overall composite score, the Global Executive Composite. Values below represent the change in T-scores scores from baseline to post-intervention for participating children. T scores at or above 70 are considered clinically significant.

Scores represent the change in T scores from baseline to post. Negative values represent decrease in impairment (better outcome) while positive scores representing an increase in impairment (worse outcome) from baseline to post when looking at the condition groups as a whole.