{"schemaVersion":"evidence-registry-1.0","canonicalUrl":"https://datingpoolreport.com/methodology","classifications":["observed","modeled","survey_reported","administrative","editorial","cannot_confirm","needs_owner","needs_live_check"],"sources":[{"id":"acs-pums-2024","title":"2024 ACS 1-year Public Use Microdata Sample","publisher":"U.S. Census Bureau","url":"https://www.census.gov/programs-surveys/acs/microdata/documentation/2024.html","methodologyUrl":"https://www2.census.gov/programs-surveys/acs/tech_docs/pums/data_dict/PUMS_Data_Dictionary_2024.pdf","publishedAt":"2025","fieldworkOrObservationPeriod":"2024","population":"People represented by the 2024 ACS one-year PUMS","geography":"United States, states, and Washington, D.C.","denominator":"Person-weighted age-and-sex cohort in the selected geography","measurementDefinition":"Age, sex, personal income, education, state, and current marital status observed on the same PUMS person record","classification":"observed","supports":["Joint weighted point estimates for the ACS fields used by the calculator."],"doesNotSupport":["Romantic singlehood, active dating, attraction, orientation, compatibility, or exact city counts."],"limitations":["Arbitrary calculator ranges do not include all 80 replicate-weight totals, so ACS sampling error and exact state ranks remain unquantified."],"reviewTrigger":"New ACS PUMS vintage, questionnaire change, data-dictionary correction, or replicate-weight model release.","reviewedAt":"2026-08-01"},{"id":"nhanes-height-2021-2023","title":"NHANES August 2021-August 2023 measured height","publisher":"CDC/NCHS","url":"https://wwwn.cdc.gov/Nchs/Data/Nhanes/Public/2021/DataFiles/BMX_L.htm","methodologyUrl":"https://www.cdc.gov/nchs/data/series/sr_03/sr03-050.pdf","publishedAt":"2026","fieldworkOrObservationPeriod":"August 2021-August 2023","population":"U.S. civilian noninstitutionalized adults in the NHANES examined sample","geography":"United States","denominator":"Sex-and-age examination group with MEC examination weights","measurementDefinition":"Measured standing height fitted as an age- and sex-specific normal distribution","classification":"modeled","supports":["A separately modeled height survival share and bounded sparse-tail estimate."],"doesNotSupport":["Joint observation with ACS income, education, or marital status; attractiveness or dating outcomes."],"limitations":["Sparse modeled tails use a stability bound, not a complete NHANES design-based confidence interval."],"reviewTrigger":"New NHANES anthropometric release, correction, or height-model version.","reviewedAt":"2026-08-01"},{"id":"cdc-obesity-2021-2023","title":"Adult obesity prevalence, August 2021-August 2023","publisher":"CDC/NCHS","url":"https://www.cdc.gov/nchs/data/hestat/hestat111.htm","publishedAt":"2026-02","fieldworkOrObservationPeriod":"August 2021-August 2023","population":"U.S. adults age 20 and older","geography":"United States","denominator":"Age-adjusted NHANES examined adult population estimate or the published sex-and-age group","measurementDefinition":"BMI calculated from measured height and weight; obesity is BMI at least 30","classification":"modeled","supports":["A separately modeled BMI-below-30 input with source-input sensitivity."],"doesNotSupport":["An individual diagnosis, attractiveness, or joint overlap with ACS traits."],"limitations":["National marginal health rates are applied separately from the ACS person records."],"reviewTrigger":"New CDC/NHANES obesity prevalence release or correction.","reviewedAt":"2026-08-01"},{"id":"nhis-smoking-2024","title":"Current cigarette smoking prevalence, 2024","publisher":"CDC/NCHS","url":"https://www.cdc.gov/nchs/data/hestat/hestat115.htm","publishedAt":"2026","fieldworkOrObservationPeriod":"2024","population":"U.S. adults represented by the 2024 National Health Interview Survey","geography":"United States","denominator":"Published national age group","measurementDefinition":"Self-reported current cigarette use; does not measure vaping, cannabis, or former smoking","classification":"modeled","supports":["A separately modeled non-current-cigarette share by age."],"doesNotSupport":["State-specific prevalence, compatibility, or other forms of smoking and substance use."],"limitations":["Applied as a national marginal rate and not jointly observed with calculator traits."],"reviewTrigger":"New comparable NHIS cigarette-use table or correction.","reviewedAt":"2026-08-01"},{"id":"pew-single-2022","title":"5 facts about single Americans for Valentine's Day","publisher":"Pew Research Center","url":"https://www.pewresearch.org/short-reads/2023/02/08/for-valentines-day-5-facts-about-single-americans/","methodologyUrl":"https://www.pewresearch.org/wp-content/uploads/2023/02/facts-single-americans-topline.pdf","publishedAt":"2023-02-08","fieldworkOrObservationPeriod":"July 5-17, 2022","population":"U.S. adults in Pew's nationally weighted survey","geography":"United States","denominator":"All surveyed adults or the named age-and-sex subgroup","measurementDefinition":"Self-reported as not married, not living with a partner, and not in a committed romantic relationship","classification":"survey_reported","supports":["The dated Pew singlehood estimate with its romantic-status definition."],"doesNotSupport":["A Census count, celibacy, loneliness, app use, or a current undated estimate."],"limitations":["Subgroup uncertainty is larger than the full-sample margin and depends on survey wording."],"reviewTrigger":"Comparable new Pew romantic-status estimate or correction.","reviewedAt":"2026-08-01"},{"id":"pew-online-2022","title":"The who, where and why of online dating in the U.S.","publisher":"Pew Research Center","url":"https://www.pewresearch.org/internet/2023/02/02/the-who-where-and-why-of-online-dating-in-the-u-s/","methodologyUrl":"https://www.pewresearch.org/internet/wp-content/uploads/sites/9/2023/01/PI_2023.02.02_Onilne-Dating_FINAL.pdf","publishedAt":"2023-02-02","fieldworkOrObservationPeriod":"2022","population":"U.S. adults in Pew's nationally weighted survey","geography":"United States","denominator":"Adults asked whether they had ever used a dating site or app","measurementDefinition":"Self-reported lifetime ever-use of a dating site or app","classification":"survey_reported","supports":["A dated cumulative ever-use estimate."],"doesNotSupport":["Current active users, market share, match rates, outcomes, or platform-specific behavior."],"limitations":["Ever-use accumulates and is not comparable to downloads, registrations, MAU, or paying users."],"reviewTrigger":"New comparable national online-dating survey or correction.","reviewedAt":"2026-08-01"},{"id":"cdc-divorce-2023","title":"FastStats - Marriage and Divorce","publisher":"CDC/NCHS","url":"https://www.cdc.gov/nchs/fastats/marriage-divorce.htm","methodologyUrl":"https://www.cdc.gov/nchs/nvss/marriage-divorce.htm","publishedAt":"2025","fieldworkOrObservationPeriod":"2023 provisional","population":"Vital events and population denominators in reporting jurisdictions","geography":"45 reporting states and Washington, D.C. for the cited divorce rate","denominator":"Reporting-jurisdiction population","measurementDefinition":"Divorce events per 1,000 population","classification":"administrative","supports":["The dated provisional event count and rate with reporting coverage."],"doesNotSupport":["A percentage, personal lifetime probability, marital-status prevalence, or dating availability."],"limitations":["Five states are excluded from the cited provisional divorce rate."],"reviewTrigger":"Final 2023 data, newer NVSS release, or coverage correction.","reviewedAt":"2026-08-01"},{"id":"bofa-ipsos-spend-2026","title":"2026 Better Money Habits Gen Z Report","publisher":"Bank of America and Ipsos","url":"https://newsroom.bankofamerica.com/content/dam/newsroom/docs/2026/BofA_BMH_2026_GenZ_Report.pdf","publishedAt":"2026","fieldworkOrObservationPeriod":"February 10-28, 2026","population":"U.S. Gen Z adults ages 18-29","geography":"United States","denominator":"Full online survey sample of 1,133 respondents, including people not actively dating","measurementDefinition":"Self-reported monthly spending on romantic dates","classification":"survey_reported","supports":["A dated full-sample Gen Z dating-spend benchmark."],"doesNotSupport":["Transaction data, an active-dater-only estimate, or an individual budget recommendation."],"limitations":["Sponsor-funded self-report; reported sampling margin is plus or minus 3 percentage points."],"reviewTrigger":"Comparable new dating-spend survey or correction to the sponsor report.","reviewedAt":"2026-08-01"},{"id":"viral-80-20","title":"The viral 80/20 dating rule","publisher":"Circulating online narrative","url":"https://knowyourmeme.com/memes/8020-dating-rule-80-of-women-are-attracted-to-20-of-men","publishedAt":"Unestablished","fieldworkOrObservationPeriod":"Unestablished","population":"Not established","geography":"Not established","denominator":"Unavailable","measurementDefinition":"Ambiguous attraction, rating, like, message, or relationship-outcome claim","classification":"cannot_confirm","supports":["Documenting that the wording circulates and requires source scrutiny."],"doesNotSupport":["Publishing the ratio as a representative population fact."],"limitations":["No representative primary source with a stable metric, sample, platform, geography, and denominator was identified."],"reviewTrigger":"A representative primary release with transparent data and definitions is found and independently reviewed.","reviewedAt":"2026-08-01"}]}