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Not professional advice
Slide Rule publishes editorial discussion of measurement methods. Content is not labor, tax, legal, accounting, investment or other professional advice. Decisions that affect income, contracts or compliance belong with qualified professionals and the person’s own judgment in consultation with those professionals.
No presupposition about the reader
Nothing on this site asserts or implies knowledge of any visitor’s personal, household, labor or financial situation. Examples and research summaries describe populations studied by others; they do not label the reader.
No testimonials
Slide Rule does not publish testimonials, reviews, success stories or before-and-after narratives. Absence of such material is intentional editorial policy.
No warranty of results
Slide Rule does not warrant that use of the site will produce secondary earnings, employment, survey accuracy for any household, or any other outcome. Research findings cited remain subject to the limits stated by their authors.
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Third-party research
Summaries of agency publications and academic papers are interpretive. Readers should consult original sources before relying on any figure or definition.