{
  "slug": "sexual-assault-lifetime",
  "question": "What are the odds of experiencing sexual assault in a lifetime?",
  "category": "crime",
  "no_reliable_estimate": false,
  "perceived": {
    "description": "Public discourse on sexual assault oscillates between two poles: widespread awareness campaigns citing high prevalence figures (often \"1 in 4\" or \"1 in 5\" for women), and a countervailing skepticism that dismisses those figures as inflated by broad definitions. Neither camp typically engages with the underlying survey methodology. For men, the perception gap runs in the opposite direction — male victimization is systematically underestimated in public consciousness, and many men do not categorize their own experiences as assault until years later, if ever. The net result is a risk that is simultaneously overstated and understated depending on which population and which definition of sexual violence is under discussion.\n",
    "kind": "intuition"
  },
  "native": {
    "display": "~44% of women and ~25% of men experience contact sexual violence in their lifetime (CDC NISVS 2016/2017)",
    "numerator": 340,
    "denominator": 1000,
    "unit": "lifetime prevalence (combined-sex weighted average)",
    "population": "US adults aged 18+, NISVS nationally representative telephone survey"
  },
  "normalized": {
    "lifetime_us_adult": 0.34,
    "display": "~1 in 3 US adults experience contact sexual violence in a lifetime",
    "log_value": -0.47,
    "assumptions": "The CDC's National Intimate Partner and Sexual Violence Survey (NISVS) 2016/2017 reports lifetime contact sexual violence prevalence of approximately 43.6% for women and 24.8% for men. Using US population sex ratio (~51% female, ~49% male): weighted average = 0.516 × 0.436 + 0.484 × 0.248 ≈ 0.345. Rounded to 0.34. This is a directly measured lifetime prevalence from a nationally representative survey, not an extrapolation from annual rates. The NISVS definition of \"contact sexual violence\" includes completed or attempted rape, being made to penetrate, sexual coercion, and unwanted sexual contact. The 2023/2024 NISVS reports similar figures (almost half of women, more than 1 in 6 men), confirming stability. Uncertainty band reflects definitional variation: the narrower \"completed or attempted rape\" definition yields ~21% for women and ~3% for men (low end), while the broadest \"any sexual violence including non-contact\" pushes above 50% for women.\n",
    "uncertainty": {
      "low": 0.12,
      "high": 0.5
    },
    "scope": "us_adult_lifetime"
  },
  "sources": [
    {
      "url": "https://www.cdc.gov/nisvs/documentation/nisvsReportonSexualViolence.pdf",
      "title": "The National Intimate Partner and Sexual Violence Survey 2016/2017: Report on Sexual Violence",
      "publisher": "Centers for Disease Control and Prevention (CDC)",
      "source_type": "govt_report",
      "statistic": "43.6% of women and 24.8% of men experienced contact sexual violence in their lifetime",
      "excerpt": "\"An estimated 43.6% of women (nearly 52.2 million) experienced some form of contact sexual violence in their lifetime, with 4.7% of women experiencing this in the 12 months preceding the survey.\"\n",
      "source_date": "2022-06-01",
      "source_accessed": "2026-04-24",
      "archive_url": "http://web.archive.org/web/20260322203642/https://www.cdc.gov/nisvs/documentation/nisvsreportonsexualviolence.pdf",
      "calculation_notes": "Primary lifetime prevalence figures directly from NISVS 2016/2017. Women: 43.6%. Men: 24.8% (contact sexual violence including made-to-penetrate). Combined-sex weighted average using US census sex ratio (51.1% F / 48.9% M): 0.511 × 0.436 + 0.489 × 0.248 ≈ 0.344. Used as lifetime_us_adult directly.\n",
      "independence_note": "All three sources are different waves or reports from the same CDC NISVS survey program. They are not independent data sources — they use the same survey methodology and sampling frame across different collection years (2011, 2016/2017, 2023/2024). Consistency across waves supports estimate stability but does not constitute independent replication.\n"
    },
    {
      "url": "https://www.cdc.gov/nisvs/media/pdfs/sexualviolence-brief.pdf",
      "title": "The National Intimate Partner and Sexual Violence Survey: 2023/2024 Sexual Violence Data Brief",
      "publisher": "Centers for Disease Control and Prevention (CDC)",
      "source_type": "govt_report",
      "statistic": "Almost half of women and more than 1 in 6 men experienced contact sexual violence in their lifetime",
      "excerpt": "\"Nationally, almost half of women and more than 1 in 6 men in the United States experienced some form of contact sexual violence in their lifetimes.\"\n",
      "source_date": "2025-01-01",
      "source_accessed": "2026-04-24",
      "archive_url": "http://web.archive.org/web/20260421194212/https://www.cdc.gov/nisvs/media/pdfs/sexualviolence-brief.pdf",
      "calculation_notes": "Corroborating data from the most recent NISVS cycle. \"Almost half\" (~47-48%) for women and \"more than 1 in 6\" (~17%+) for men. The slight upward drift in the women's figure and downward drift in the men's figure compared to 2016/2017 may reflect methodological changes (address-based sampling vs. RDD) rather than true prevalence shifts. Confirms order-of-magnitude stability of the central estimate.\n",
      "independence_note": "Same CDC NISVS survey program as source 1 (different wave: 2023/2024 vs 2016/2017). Not an independent data source.\n"
    },
    {
      "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/ss6308_brief.htm",
      "title": "Prevalence and Characteristics of Sexual Violence, Stalking, and Intimate Partner Violence Victimization — NISVS, United States, 2011",
      "publisher": "CDC Morbidity and Mortality Weekly Report (MMWR)",
      "source_type": "govt_report",
      "statistic": "19.3% of women experienced completed or attempted rape in their lifetime; 1.7% of men",
      "excerpt": "\"Approximately 19.3% of women and 1.7% of men have experienced completed or attempted rape at some time in their lives. An estimated 43.9% of women and 23.4% of men experienced other forms of sexual violence during their lifetimes.\"\n",
      "source_date": "2014-09-05",
      "source_accessed": "2026-04-24",
      "archive_url": "http://web.archive.org/web/20260503093508/https://www.cdc.gov/mmwr/preview/mmwrhtml/ss6308_brief.htm",
      "calculation_notes": "Earlier NISVS wave (2011) providing the narrow \"completed or attempted rape\" prevalence. Women 19.3%, men 1.7%. Combined: ~10.7%. This anchors the low end of the uncertainty band (0.12) when using the narrowest definition of sexual assault.\n",
      "independence_note": "Same CDC NISVS survey program as sources 1 and 2 (2011 wave). Not an independent data source.\n"
    }
  ],
  "comparison_anchors": [
    {
      "label": "Intimate-partner violence (lifetime, US women)",
      "lifetime_us_adult": 0.41
    },
    {
      "label": "Stalking (lifetime, US women)",
      "lifetime_us_adult": 0.162
    },
    {
      "label": "Home burglary (lifetime, US household)",
      "lifetime_us_adult": 0.11
    }
  ],
  "short_label": "Sexual assault",
  "myth_framing": "underrated",
  "outcome_severity": "serious_harm",
  "exposure_pattern": "recurring",
  "outcome_type": "mental_trauma",
  "valence": "negative",
  "caveats": "\"Contact sexual violence\" in the NISVS includes a spectrum from unwanted sexual touching to completed rape. The headline figure of ~1 in 3 adults uses the broadest validated category; the completed-or-attempted-rape subset is roughly 1 in 5 women and 1 in 60 men. Male victimization figures are particularly sensitive to whether \"made to penetrate\" is classified as rape (NISVS counts it separately). Underreporting remains substantial — the Bureau of Justice Statistics estimates that roughly two-thirds of sexual assaults go unreported to police, though NISVS uses anonymous survey methodology that captures more than crime reports do. Prevalence varies significantly by demographics: LGBTQ+ individuals, people with disabilities, and American Indian/Alaska Native women report substantially higher rates. The figures represent US adults; global rates vary widely by region and survey methodology.\n",
  "quality_score": {
    "d1": 5,
    "d2": 5,
    "d3": 5,
    "d4": 5,
    "d5": 5,
    "d6": 5,
    "d7": 4,
    "d8": 5,
    "avg": 4.875,
    "scored_by": "extracted-from-transcript",
    "scored_at": "2026-05-16",
    "methodology_version": "1.0"
  },
  "reviewer": "8d-eval-2026-05-16",
  "last_reviewed": "2026-05-16",
  "reviewed": true,
  "generated_at": "2026-04-24",
  "image": {
    "alt": "A cracked mirror reflecting fragmented light, flat vector editorial illustration, muted palette."
  },
  "attribution": "Likelier — https://likelier.app",
  "license": "https://creativecommons.org/licenses/by-sa/4.0/",
  "support": "https://buymeacoffee.com/kgluszczyk?via=likelier&utm_content=api-fear-single",
  "canonical_url": "https://likelier.app/sexual-assault-lifetime"
}