Tỷ lệ một thiếu niên bị bắt nạt trên mạng là bao nhiêu?

Mỗi con số dưới đây là những gì mỗi nguồn đã báo cáo, cùng với trích dẫn nguyên văn mà chúng tôi dựa vào và cách chúng tôi đưa ra con số của mình. Nhấp vào bất kỳ liên kết nào để xác minh trực tiếp.

1. [1] CDC MMWR Supplements, Vol. 73, No. 4 (2024) — Frequent Social Media Use and Experiences with Bullying Victimization, Persistent Feelings of Sadness or Hopelessness, and Suicide Risk Among High School Students — Youth Risk Behavior Survey, United States, 2023 Báo cáo chính phủ

   Frequent Social Media Use and Experiences with Bullying Victimization, Persistent Feelings of Sadness or Hopelessness, and Suicide Risk Among High School Students — Youth Risk Behavior Survey, United States, 2023

   Thống kê

   In 2023, electronic bullying (past 12 months) among US high school students was 17.0% among frequent social-media users vs 15.9% among less-frequent users (aPR 1.54, 95% CI 1.26-1.88); by sex 21.5% (frequent) / 20.0% (non-frequent) among females and 12.2% / 13.0% among males; by sexual identity 25.5% / 18.6% among LGBQ+ vs 14.4% / 8.6% among heterosexual students (N=20,103)

   Trích đoạn

   “"Students who reported frequent social media use were more likely to be bullied at school and electronically bullied compared with less frequent social media users (Table 4)." [Table 4: electronically bullied 17.0% (frequent SM use) vs 15.9% (less frequent), aPR 1.54 (1.26-1.88).] ”

   Dữ liệu nguồn từ

   2024-10-24

   Truy cập

   2026-04-19 · bản sao lưu trữ

   Tính toán

   The YRBS is a nationally representative, school-based survey conducted biennially by the CDC since 1991. The 2023 cycle surveyed N=20,103 students in grades 9-12. The electronic bullying question asks whether the student was "electronically bullied" (counting being bullied through texting, Instagram, Facebook, or other social media) during the 12 months before the survey. This 2024 MMWR supplement reports electronic bullying stratified by frequency of social-media use rather than as a single pooled figure: 17.0% among frequent users (77.0% of students) and 15.9% among less-frequent users (23.0%). The population-weighted mix, 0.770 × 17.0% + 0.230 × 15.9% ≈ 16.7%, brackets the ~16% annual electronic- bullying prevalence used as the native anchor (also cross-validated by the Modecki 2014 meta-analysis mean of 15%). Annual rate of 0.16 compounded over 4 years of high school: 1 - (1 - 0.16)^4 ≈ 0.50. This source's primary contribution is the frequent-social-media-use association — aPR 1.54 (95% CI 1.26-1.88) for electronic bullying — which grounds the "Heavy social media user" personal-factor multiplier. It also confirms the demographic direction used in the regional breakdown: females (21.5%/20.0% frequent/non-frequent) exceed males (12.2%/13.0%), and LGBQ+ students (25.5%/18.6%) exceed heterosexual students (14.4%/8.6%).

2. [2] Pew Research Center — Teens and Cyberbullying 2022 Nguồn tham khảo

   Teens and Cyberbullying 2022

   Thống kê

   46% of US teens ages 13-17 reported experiencing at least one of six types of cyberbullying behavior; 28% experienced multiple types; girls (49%) more than boys (43%); older girls 15-17 at 54%

   Trích đoạn

   “"Roughly half of U.S. teens (46%) report ever experiencing at least one of six types of cyberbullying behaviors asked about in a Center survey." ”

   Dữ liệu nguồn từ

   2022-12-15

   Truy cập

   2026-04-19 · bản sao lưu trữ

   Tính toán

   Pew's 2022 survey used a broader definition than the YRBS single-item question, asking about six specific behaviors: offensive name-calling (32%), spreading of false rumors (22%), receiving explicit images they did not ask for (17%), constant asking of where they are or what they are doing by someone other than a parent (15%), physical threats (10%), and having explicit images of them shared without consent (7%). The "any of six" figure of 46% is a lifetime prevalence for ages 13-17, not a past-year rate, which explains why it is much higher than the YRBS's 16% past-year figure. The two numbers are not contradictory — they measure different time windows and different behavioral thresholds. The Pew figure informs the upper end of the uncertainty band.

   Độc lập

   Independently collected via Pew's American Trends Panel (online probability panel of US adults + teen supplement). Entirely different sampling frame, methodology, and behavioral definitions from the CDC YRBS school-based survey.

3. [3] Journal of Adolescent Health (Modecki, Minchin, Harbaugh, Guerra, Runions 2014) — Bullying Prevalence Across Contexts: A Meta-analysis Measuring Cyber and Traditional Bullying Được bình duyệt

   Bullying Prevalence Across Contexts: A Meta-analysis Measuring Cyber and Traditional Bullying

   Thống kê

   Meta-analysis of 80 studies found mean cyberbullying prevalence of 15% among adolescents, compared to 36% for traditional (in-person) bullying

   Trích đoạn

   “"Mean prevalence rates across contexts were 36% for traditional bullying and 15% for cyberbullying." ”

   Dữ liệu nguồn từ

   2014-11-01

   Truy cập

   2026-04-19 · bản sao lưu trữ

   Tính toán

   Modecki et al. 2014 is the most-cited meta-analysis on comparative bullying prevalence. The 15% mean cyberbullying prevalence across 80 studies aligns closely with the CDC YRBS 2023 figure of 16%, providing cross-validation that the annual prevalence has been remarkably stable at roughly 15-16% for over a decade despite large changes in platform use patterns. The meta-analysis included studies with heterogeneous definitions, timeframes, and populations, but the central tendency converges on this range. The finding that traditional bullying (36%) is roughly 2.4x more prevalent than cyberbullying is used for the comparison anchor.

   Độc lập

   Meta-analysis synthesising 80 independent studies from multiple countries. Does not include the 2023 YRBS data (predates it by nearly a decade).

4. [4] Journal of Medical Internet Research (John et al. 2018) — Self-Harm, Suicidal Behaviours, and Cyberbullying in Children and Young People: Systematic Review Được bình duyệt

   Self-Harm, Suicidal Behaviours, and Cyberbullying in Children and Young People: Systematic Review

   Thống kê

   Cyberbullying victims were 2.35x as likely to self-harm (OR 2.35, 95% CI 1.65-3.34), 2.10x as likely to exhibit suicidal behaviors (OR 2.10, 95% CI 1.73-2.55), and 2.57x as likely to attempt suicide (OR 2.57, 95% CI 1.69-3.90) compared to non-victims

   Trích đoạn

   “"Children and young people who are victims of cyberbullying are at a greater risk of both self-harm and suicidal behaviors." ”

   Dữ liệu nguồn từ

   2018-04-19

   Truy cập

   2026-04-19 · bản sao lưu trữ

   Tính toán

   This systematic review is included to document the mental health consequences of cyberbullying, not to derive the prevalence figure. The odds ratios (self-harm OR 2.35, suicidal behavior OR 2.10, suicide attempt OR 2.57) establish that cyberbullying victimization is a clinically meaningful risk factor for serious downstream harm, which supports the outcome_severity classification of moderate_harm (the cyberbullying itself is moderate; the tail-risk sequelae are serious). These ORs do not enter the native-to-normalized calculation.

5. [5] National Center for Missing & Exploited Children (NCMEC) — NCMEC Releases New Data: 2024 in Numbers Nguồn tham khảo

   NCMEC Releases New Data: 2024 in Numbers

   Thống kê

   In 2024 NCMEC saw a 1,325% increase in CyberTipline reports involving Generative AI Technology (reports rose from ~4,700 in 2023 to ~67,000 in 2024); NCMEC received nearly 100 reports of financial sextortion per day; since 2021 at least 36 teenage boys have died by suicide after being victimized by sextortion

   Trích đoạn

   “"In 2024 alone, NCMEC saw a 1,325% increase in CyberTipline reports that involved Generative AI Technology (GAI). Over the last year, NCMEC received nearly 100 reports of financial sextortion per day. Since 2021, NCMEC is aware of at least 36 teenage boys who have taken their lives because they were victimized by sextortion." ”

   Dữ liệu nguồn từ

   2025-03-17

   Truy cập

   2026-06-14 · bản sao lưu trữ

   Tính toán

   Included to document an emerging severity/threat dimension — AI-generated abuse imagery and financially-motivated sextortion — that postdates the prevalence anchors above. NCMEC publishes absolute CyberTipline report counts and year-over-year percentage changes, not a per-teen relative risk. There is therefore no arithmetic path from these figures to a multiplier on the 16% YRBS cyberbullying base rate (the report-count denominator and reporting fraction are unknown), so this source does NOT enter the native-to-normalized calculation and adds no personal_factor_multiplier. It is corroborated by the Internet Watch Foundation, which assessed 8,029 AI-generated images and videos showing realistic child sexual abuse in 2025 (including 3,443 AI videos, a 26,385% increase over the 13 found in 2024) and noted that single applications "can now generate abusive imagery with minimal effort, removing the need for technical expertise and significantly lowering barriers to entry" (IWF, AI CSAM Report, 2026). Unlike the female/LGBTQ+ skew of the underlying cyberbullying base, financial sextortion predominantly targets adolescent boys.

   Độc lập

   NCMEC's CyberTipline is the US congressionally-authorised clearinghouse for online child-exploitation reports — an entirely separate data stream (industry + public reports of exploitation) from the school-based YRBS and the Pew panel survey used for the prevalence anchors.