Unfortunately, the &#x27;rich kid&#x27; advantage starts ~18 years before they take a free online SAT prep class. Reasons are vast and entangled with race, geolocation, socio-economic status, health, and even fundamental differences in brain development during adolescence. But, the problem is most certainly not as simple as having access to the Internet and a free online course (this is also fraught with its own perils that are easily overlooked).*<p>[1] <a href="http:&#x2F;&#x2F;www.npr.org&#x2F;sections&#x2F;ed&#x2F;2014&#x2F;08&#x2F;07&#x2F;335285098&#x2F;rich-kid-poor-kid-for-30-years-baltimore-study-tracked-who-gets-ahead" rel="nofollow">http:&#x2F;&#x2F;www.npr.org&#x2F;sections&#x2F;ed&#x2F;2014&#x2F;08&#x2F;07&#x2F;335285098&#x2F;rich-kid...</a><p>[2] <a href="http:&#x2F;&#x2F;www.scientificamerican.com&#x2F;article&#x2F;poverty-disturbs-children-s-brain-development-and-academic-performance&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.scientificamerican.com&#x2F;article&#x2F;poverty-disturbs-c...</a><p>*Edit: Other comments have pointed out the difficulties in just having Internet access, skills to use the Internet, awareness of free online training, cognizance that training can improve your SAT outcomes, understanding that SAT outcomes are tied to many other positive life outcomes, etc.