Do the discussion below have any validation and why?

This discussion question couldn't come at a better time, I was talking about this topic last night with my fianc. He was watching a YouTube video on the IQ of bodybuilders. A team of YouTubers wanted to see if appearances could determine each bodybuilder's IQ. The research question was, "are bodybuilders dumb?" (terrible research question) and they tested this using two methods. First they put all the participants through very random activities such as pop quiz questions and seeing how much each individual could lift. This experiment was not valid or reliable in any way shape or form, and there are so many implications of judging someone based on a biased construct. In this scenario the biased construct is the false idea that bodybuilders are dumb. Their goal was to pick who was the dumbest and who was the smartest based on how much they could lift and what they looked like (you can see the issues with this from a mile away). At the end of the experiment the final testing method was having each participant take an IQ test. The results showed that appearances in fact can not determine IQ and it also showed that bodybuilders are not all "dumb" in fact the IQ scores were mostly above average with one below average and few right around average. After watching the video we talked about IQ tests and how they are becoming less relevant as well as the issues with them. And as Nisbett (2011) states, some "groups" are smarter than others and I find that controversial just as I found the question "are bodybuilders dumb" controversial. Nisbett (2011) also mentions that there are different types of IQ such as crystalized and fluid. A better test for crystallized intelligence is the Wechsler Adult Intelligence Scale (WAIS) and a better test for fluid intelligence is the fourth edition of the Woodcock-Johnson Test of Cognitive Abilities, I do not think we should solely rely on the IQ test for intelligence because intelligence is bigger than the IQ tests makes it out to be (Testing Mom, 2019; Wechsler, 2008). In fact, the Woodcock Johnson tests cover a wide range of cognitive skills. That is why we should be re-evaluating using the IQ test for education, employment, and even the perception of individual worth. I never took an IQ test for the DEA interview process. I took perception and judgment tests, memory tests, problem solving tests, and went through interviews to determine my cognitive capabilities because an IQ test can not capture how intelligent a person can truly be. It has also excluded populations from universities and from jobs, this is why hiring practices and educational recruitment processes need to look at the whole picture of a person and not just a test score. On a side note, when I was applying for my Master's program I truly believed that my GPA could get me into any program but there is actually a rigorous process when applying at universities, they do not just look at your GPA they look at your resume, your curriculum vitae, and cover letter, and some programs require prior certificates and interviews.

References

Nisbett, R. (2011). Intelligence and How to Get It. https://www.psychologicalscience.org/observer/intelligence-and-how-to-get-it?pdf=true

Testing Mom. (2019). Woodcock Johnson Tests. TestingMom. https://www.testingmom.com/tests/woodcock-johnson/

Wechsler, D. (2008). Wechsler Adult Intelligence Scale--Fourth Edition (WAIS-IV)[Database record]. APA PsycTests.

https://doi.org/10.1037/t15169-000