The latest proposals for ‘multi-strategy’ techniques request to determine and control methodological uncertainty in quantitative analysis. We present a case-study of the multi-method analysis, placed on the situation of estimating the long-term impact of eighties UK authorities-sponsored youth schooling. We use this case study to further highlight the issue https://erickgkhcs.tinyblogging.com/the-fact-about-hire-someone-to-do-my-case-study-that-no-one-is-suggesting-73265984