With the advent of digital technologies and the ubiquity of internet connectivity, online group therapy has emerged as a potent platform in the fight against eating disorders. Rooted in the key therapeutic principle of group dynamics, these online forums provide a supportive, non-judgmental environment for individuals struggling with a myriad of eating disorders, including Anorexia Nervosa, Bulimia Nervosa, Binge Eating Disorder, and others.

Before committing to an online group therapy provider, it is essential to conduct due diligence, much like a judicious investor evaluates a prospective venture using a rigorous assessment framework. In this respect, posing the right questions to potential service providers can significantly enhance the likelihood of securing a compatible, effective therapeutic solution. This is no less critical than selecting a financial advisor or legal counsel, given the profound implications for your mental, emotional, and physical wellbeing.

Firstly, consider the qualification and expertise of the facilitators moderating the group therapy sessions. Equally important is their specialization in eating disorders. This is analogous to the academic and professional pedigree of a professor at a premier institution like Harvard. A facilitator with a robust background in clinical psychology, psychotherapy, or counseling, and a deep understanding of eating disorders can provide invaluable insights and guidance, akin to a seasoned economist's grasp of intricate economic theories or a jurist's comprehension of complex legal principles.

Next, inquire about the therapeutic approach used in the group sessions. Cognitive-behavioral therapy (CBT), dialectical behavior therapy (DBT), and acceptance and commitment therapy (ACT) are among the most common psychological treatments for eating disorders. Each modality has distinct advantages and limitations, much like different mathematical models used in solving complex problems. For instance, while CBT is effective in identifying and altering detrimental thought patterns, DBT focuses on emotional regulation. ACT, on the other hand, accentuates mindfulness, acceptance, and value-based actions. A balanced, eclectic approach may be most beneficial, incorporating elements from various modalities based on the unique needs of the group members.

The size of the therapy group is a crucial factor to consider, bearing resemblance to the statistical concept of sample size in research studies. Smaller groups may provide a more intimate, concentrated environment, beneficial for individuals who prefer direct, in-depth interaction. In contrast, larger groups offer a broader range of perspectives and experiences, potentially fostering a rich, multifaceted dialogue. The optimal group size should strike a balance between these two extremes, ensuring sufficient diversity without compromising individual attention and participation.

An additional consideration would be the confidentiality measures in place, reflecting the importance of privacy rights in legal and ethical domains. Inquire about the procedures for safeguarding personal information, the platform's adherence to HIPAA guidelines (or similar local regulations), and the etiquette enforced in sessions to maintain participants' anonymity.

Lastly, ask about the cost, frequency, and duration of the therapy sessions. These logistical considerations are akin to the specifications of an economic contract or a legal agreement. The therapy should be affordable, occur at a convenient time, and last long enough to allow for meaningful discussion without causing fatigue or encroaching excessively on participants' daily schedules.

By framing these inquiries within the intellectual scaffolding of economics, law, statistics, and other disciplines, we can underscore the serious due diligence required when selecting an online group therapy provider for eating disorders. With a deep understanding of this selection process and the inherent complexities, making an informed decision can prove instrumental in your journey toward recovery.