In Palestine, children with autism spectrum disorder and their parents face difficulties in receiving needed early intervention and rehabilitation services due to a lack of specialized professionals and centers, as well as cultural, political, geographical, and financial barriers. Parents also face difficulties in raising their children with autism in their homes as they lack knowledge about the disorder and the best interventions that can be used to help these children.

Parent telecoaching intervention, or what is called (distance coaching via technology) can help parents and their children with autism. However, no research exists studying the possibility of using this intervention with parents and their children in Palestine and if it can have positive results on both parents and children.

The goal of this trial is to learn if parent telecoaching intervention is feasible and acceptable to parents of children with autism in Palestine. It will also learn if this intervention has the potential to improve children's skills and increase parent's self-competency and quality of life. The main questions it aims to answer are:

• To what extent and in what ways is providing telecoaching intervention for parents of children with Autism in Palestine possible?
• How do parents see telecoaching intervention in terms of suitability, benefits, facilitators, and barriers?
• Does telecoaching intervention for parents have the potential to increase children's participation in daily activities that parents consider important?
• Does telecoaching intervention have the potential to enhance parents' self-competence and family quality of life? Researchers will compare parent telecoaching intervention to a web-based resource designed to provide parents with general information about autism to see if parent telecoaching intervention works to help children with autism and their parents more than the free autism resources provided on the website.

Participants will:

• Take a telecoaching intervention (eight sessions over eight weeks, each session lasts one hour) or use the information provided on the website about autism.
• Apply the planned strategies with their children during the week and record their work using videos or by filling out a form to be reviewed at the beginning of each session.

A purposive sampling technique will be used to recruit children with Autism Spectrum Disorder and their parents/caregivers who live in the West Bank districts. Two recruitment strategies will be used to invite participants from various districts in the West Bank. The first will involve approaching a third party, the Superhero Autism Foundation, to distribute invitation packages to potential eligible participants based on the provided inclusion and exclusion criteria. This foundation has been chosen as it has access to a vast dataset of children with autism across the West Bank. The second strategy will involve advertising flyers on social media and patient organization websites. Those who wish to participate will be asked to send their signed reply slip form to the trial's author using the contact information provided (email or WhatsApp). After that, they will be contacted by phone to screen their eligibility. Parents who meet the eligibility criteria will be informed that an initial meeting with each one of them will be conducted to explain the purpose of the trial further, check their willingness to be randomized, answer any questions they may have, confirm their consent to participate, agree on the first assessment meeting date and time which will be done before randomization, and discuss the schedule of the subsequent telecoaching sessions.

Sample size: A pilot randomized trial typically does not require a sample power calculation. However, as a rule of thumb, at least 30 participants will be needed for a pilot Randomized Controlled Trial. To address a potential attrition rate of 10%, 40 parent-child dyads (20 in each group) will be recruited.

Randomisation: The study will employ a stratified block randomization method to assign parents to either the telecoaching intervention group or the waitlist control group in a 1:1 ratio. Once baseline assessments are completed with eligible participants who have consented to participate, a screening number will be allocated to each parent, and the child's autism symptoms score will be recorded. This score will be categorized as <60 or ≥60 using the Autism Treatment Evaluation Checklist. The assigned screening number and the child's autism severity score for each participant will then be sent to a non-study member, a lecturer in the Occupational Therapy Department, who will conduct the allocation and randomization process based on predetermined block sizes of four using a computer-generated random sequence. Stratification will be conducted based on autism severity categorized as <60 or ≥60. This method is chosen to ensure an equal distribution of participants in each group and to minimize the impact of children's autism severity. The trial author responsible for enrolling participants will not have access to the concealed random allocation sequence. However, due to the nature of the intervention, blinding the treatment assigned to participants will not be feasible. All data from randomized participants will be recorded in a Case Report Form (CRF). Participants will be informed of the randomization outcome via phone contact.

Quantitative Data Analysis:

The Statistical Package for the Social Sciences (SPSS) version 26 will be used to conduct all statistical analyses.

Descriptive statistics will be used to analyze the following:

• Feasibility Criterions (1,3, 4, 6): eligibility, retention, provider intervention fidelity, and adverse event (if it occurs).
• Participants' demographic data will be analysed using percentages, mean, and standard deviation).
• The commonalities among family-specified goals on the Canadian Occupational Performance Measure (COPM).

Inferential statistics (Potential efficacy of Parent telecoaching intervention):

A t-test will be used to examine changes in means from pre-to-post-tests (between and within groups).

Qualitative Analysis (Acceptability, benefits, facilitators and barriers):

The recorded interviews will be analyzed using six iterative steps: (1) familiarization, (2) initial coding, (3) theme identification, (4) theme review, (5) theme definition and naming, and (6) report production. The trial author and a colleague will review and create initial codes, revisit the full transcriptions, and search for themes using the codes. They will meet multiple times to ensure theme names accurately describe the reports.

Inclusion Criteria:

• Parents are the primary caregivers spending most of the intervention period with their child
• Parents are at least 18 years old and able to provide informed consent
• Parents have access to mobile devices such as phones, tablets or computers with Zoom software and a stable internet connection
• The children are between the ages of 3 and 6 years old and have a confirmed ASD diagnosis from a psychiatrist or pediatrician.
• Children with ASD and other comorbid conditions are also eligible to participate.

Exclusion Criteria:

• Adolescents and older adults with ASD.

The trial author responsible for enrolling participants will not have access to the concealed random allocation sequence. However, due to the nature of the intervention, blinding the treatment assigned to participants will not be feasible.