Subjects and their caregiver will engage in the Floreo VR Building Social Connections VR sessions: three sessions per week, for 12 weeks. Each session will consist of 2 VR (Floreo BSC) lessons separated by a brief break, for a total of approximately 15 minutes of direct VR time over a 30-minute period. Treatment sessions will be scheduled over a 12-week period, with an allowance of up to 15 weeks for make-up sessions (e.g., illness or travel).

The intervention will consist of two episodes of the Floreo BSC program, each lasting 4-5 minutes, according to a fixed program of episodes determined by the participant's color-coded group. VR episodes will be presented via the Floreo application downloaded onto an iPhone worn by the participant in the VR headset. The VR interaction will be controlled and operated via linked iPad.

Change in measure: The AIM is a 25-item parent questionnaire targeting sensitivity to change of core ASD symptoms (Kanne et al., 2014). The questionnaire uses a 2-week recall period with items rated on two corresponding 5-point scales (frequency and impact). 5-point Likert-type scale, once for frequency of a specific behavior of the dependent and once for impact of that behavior. Response options range from "never" to "always" for the frequency dimension and "not at all" to "severely" for the impact dimension. Higher domain and higher total scores indicate greater symptom severity (Houghton et al., 2019; Mazurek et al., 2018). Likewise, lower AIM scores indicate less severe symptomatology.

Change in score from Baseline up to 1 week post final treatment visit. The CARS2 total raw score range from 15 to 60. This scale is a behavior rating scale intended to diagnose autism. A total score of 15 indicates that an individual behavior is within normal limits, whereas a value of 60 indicates that the individual's behavior is severely abnormal.

Change in Measure for The Vineland-3 which evaluates adaptive behavior in five different domains: Social, Communication, Daily Living Skills, and Motor (Sparrow et al., 2016). In the context of this study, it will be administered using the Comprehensive Interview Form, for which a parent or caregiver is interviewed by a qualified rater familiar with the instrument. Based on the summarized scores in each domain, an Adaptive Behavior Composite (ABC) is also calculated. Items are scored on a scale of 0 (never), 1 (sometimes), or 2 (usually) for the level at which the child can independently perform a skill. The higher the score, the better the adaptive level.