The goal of this study is to evaluate the impact of a parental coaching based on E-Learning (EL), intended for parents of children with autism spectrum disorder (ASD). Population: parents of young children (2 to 4 years old) with an ASD diagnosis. The main questions that our study will answer are: * Has parental coaching via E-Learning a significant impact compared to no coaching? * If so, is that impact comparable to standard parental coaching such as PACT? The impact will be evaluated in three domains: * Child development: behavior, sleep, eating behavior * Parental competences: stress, coping, feeling of parental competencies * Parent-child interaction: communication, visual attention The investigators will compare 3 groups: 1. ASD children whose parents will follow a parental coaching via E-learning, 2. ASD children whose parents will follow a standard parental coaching (PACT) 3. ASD children whose parents will not follow any specific coaching program