How GradeHorizon reviews and corrects its work.

Editorial responsibility

GradeHorizon guides and calculator documentation are maintained by the GradeHorizon Editorial Team, the publishing function of GradeHorizon.com. We use an organization byline because the site does not currently publish a named individual author or claim academic-counseling credentials that have not been independently verified.

GradeHorizon is an independent educational website, not a school, registrar, admission office, application service, athletics organization, or credential evaluator. The publisher is responsible for deciding what appears on the site and for addressing corrections submitted through the contact page.

How a guide is produced

1. Define one visitor question. A guide must answer a distinct calculation or policy question rather than repeat another page for a keyword variation.
2. Separate arithmetic from policy. Universal math is explained directly; school- or organization-specific inclusion rules are labeled and attributed.
3. Build a reversible example. Totals are checked by reversing the calculation or reconciling weighted contributions.
4. Link the appropriate tool. A calculator is recommended only when its inputs and assumptions match the guide.
5. Review the public page. Links, mobile layout, accessibility labels, structured data, and displayed dates are checked before publication.

How calculator results are checked

Calculator logic uses shared grade-point and credit-validation rules where the underlying method is the same. Test cases cover published worked examples, boundary values, malformed saved data, invalid credits, and the order in which shared calculation code loads. Browser checks confirm that the form, result, reset path, and navigation remain usable on the deployed site.

A calculator result is still an estimate. A passing automated test confirms that GradeHorizon follows its published formula; it cannot confirm that the formula matches an individual school’s handbook, gradebook, repeat-course rule, or rounding policy.

Source standards

For an organization-specific claim, the current organization that controls the rule is the preferred source. Examples include a registrar for an institution’s GPA policy, College Board for AP information, AAMC for AMCAS course classification, LSAC for the CAS report, and NCAA for eligibility rules. Official handbooks, policy pages, and technical documentation take priority over blogs or calculator summaries.

Sources are linked near the relevant guide. When an official source and an older GradeHorizon explanation conflict, the official source controls. We avoid presenting a local example scale as a national standard.

Reviews, dates, and corrections

“Last reviewed” means the page’s calculation, source links, and major policy qualifiers were checked on the displayed date. It does not mean that every external organization changed its policy on that date. Material changes update the visible review date and the structured-data modification date together.

Readers can report a calculation error, broken source, unclear assumption, accessibility problem, or outdated policy through the contact page. A useful report includes the page URL, the disputed sentence or result, the expected value, and an official source when available. Confirmed material errors are corrected in the page rather than hidden in a separate comment thread.

Advertising and editorial independence

Advertising, if introduced, will be visually separate from navigation and educational content. An advertiser cannot purchase a calculator result, remove a policy caveat, select a source, or receive an undisclosed favorable conclusion. References to third-party organizations do not imply sponsorship or endorsement.