I am done with the free quiz sites that tell everyone they are a genius. I want to know where to go for an actual legitimate cognitive assessment. I know clinical testing exists but I also know it is expensive and not always easy to access. What are the real options for someone who genuinely wants an accurate measurement of their cognitive abilities?
There are basically three legitimate routes and knowing the difference saves you time and money. The gold standard is a full clinical assessment like the WAIS administered by a licensed psychologist. You get the most precise and defensible score possible but it costs several hundred dollars, requires finding a qualified examiner, and is overkill if you are just genuinely curious rather than seeking a diagnosis or documentation. The second route is a well designed online assessment with real psychometric foundations. RIOT IQ sits here, built on the CHC model with 15 subtests across 6 cognitive domains and actual norming data behind it. That puts it in a completely different category from quiz sites and gives you both an overall score and a detailed cognitive profile at a fraction of the clinical cost. The third route is university research studies that sometimes administer validated cognitive batteries for free in exchange for participating in research, worth checking if you are near a major university.
Honestly just avoid anything that takes under 30 minutes and gives you a score above 130 
Real cognitive assessment is longer and more effortful than most people expect because g only emerges reliably when you sample across enough different ability domains. If it felt like a fun quiz it was not measuring your intelligence 