I would personally say your child is gifted, especially if she used the SB-5 and got a 143. The other stuff is academic tests and perhaps your child is relatively weak in attention or processing speed or even executive functioning. That is an interesting difference. Personally I would say a 130s or above IQ is gifted.
I would rely on the FSIQ to say that she is gifted, and technically under many definitions it works (130+ or 140+) so I would say she is gifted. But the SB is supposed to be taken in exam conditions in the conditions set, not online.
If I had to make a decision based on your child, I would say she is gifted but needs confirmation with a genuine IQ test in full standardised conditions.
Unlike aeh I do not necessarily believe that simply monitoring development and being aware of needs with "clinical judgement" could suffice for homeschooling in many cases. There are many complex conditions such as personality-related problems if the teen/preteen is very egocentric and has a pattern of it. That is why I prefer standardised testing too as a junior mentor/researcher and former teacher/tutor.
How early admission do you want to lobby for her and how many levels do you want her to skip? What other courses in other subjects did she take? I would probably focus on enrichment in non-academic hobbies as well as other holistic attributes, for instance survival skills. Besides, if your daughter is not perfect (for instance, has a vice or similar) at least she has many other decent qualities and decent friendships who will accept her. I personally am not willing to be extremely harsh on a teen for enjoying some vaping while keeping to between lectures and spend their money responsibly but soem parents are black and white it seems.
If she is doing Algebra I and Chemistry then it seems she would be ready to enter university maybe 3-5 years later or 6. While I personally favor early enrollment I would prefer if the college she goes to is a quite decent college, perhaps top 100 or a decent liberal arts school. In my personal experience in hindsight I would go to a college who is supportive of people including early-entrants as well as decent. And hopefully they would be able to fit in, join parties and all that.
I do see a need for advocacy based on labels as whether she is gifted or simply an extremely hard worker changes things. If the latter, people may be skeptical. If the former, perhaps it would be better. Sometimes gifted girls can hide disabilities better by compensating with their great intelligence (especially if the 143 IQ is genuinely 143 IQ in standard conditions). If daughter has some executive function or personality or personal problems, in my opinion a label could not only help give them autonomy but also accountability for her as well as others. Some people discriminate others because they perceive others as disabled even if they are not. This is where I appreciate aeh's opinion but don't fully agree in this aspect.
