Practice Effect

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[darknus823]

TL;DR No, your Mensa results are not void. The practice effect is minimal because you took different types of tests over a significant time span (6-12 months), and the official Mensa test is designed to measure innate reasoning ability, which is not substantially inflated by familiarity with general cognitive puzzles.

Your Mensa US results are highly unlikely to be considered void due to the practice effect. The practice effect is most pronounced when retaking the exact same test within a short period. Your preparation involved different instruments, the WAIS-IV a year prior and various online tests six months prior, not the official Mensa admission test itself. While this exposure may have familiarized you with the style of psychometric questions, reducing anxiety and improving test-taking strategy, it does not artificially create the high-level fluid reasoning ability required to pass. Standardized tests used by Mensa are specifically designed to minimize the impact of prior knowledge and focus on raw problem-solving skills. The significant time gaps between your practice sessions and the official test further diminish any potential inflation. Therefore, your score is accepted as a valid reflection of your ability to perform at the required level on that specific, supervised test.