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The Phone-Mediated Safety Crisis in High Schools: A Principal's Guide to the Four Connected Risks — Conflict, Drugs, Digital Harassment, and Distraction
A research-based guide for high school principals on the connected safety risks of phones, social media, conflict, and drugs — and what structural enforcement can and cannot do.
John Nguyen
9 hours ago16 min read


Chronic Absenteeism in High School: A Principal's Guide to the Crisis That Isn't Going Away
A research-based guide for high school principals on chronic absenteeism. The 2024–25 RAND data, the cause-disaggregated intervention framework, and what works in 2026.
John Nguyen
9 hours ago16 min read


Dropout Prevention and Graduation Rates in High School: A Principal's Guide to the Evidence-Based Playbook for Keeping Every Student on the Path
A research-based guide for high school principals on dropout prevention and graduation rates. The IES practice guide framework, early warning indicators, and what works.
John Nguyen
9 hours ago15 min read


The Ninth Grade Transition: A Principal's Guide to the Most Consequential Year in High School
A research-based guide for high school principals on ninth grade transition. Why on-track status predicts graduation better than demographics and prior achievement combined.
John Nguyen
10 hours ago16 min read


The High School Mental Health Crisis: A Principal's Guide to Moving From Awareness to Action
A research-based guide for high school principals on adolescent mental health and suicide prevention. The 2025 evidence, the tiered framework, and what real implementation requires.
John Nguyen
10 hours ago16 min read


When Phone-Free Policies Fail Disadvantaged Students: A Principal's Guide to the Enforcement Architecture That Protects Equity
Why first-year cell phone bans disproportionately suspend Black students — and what enforcement architecture protects equity. October 2025 evidence for high school principals.
John Nguyen
10 hours ago14 min read


Phone-Free High Schools: A Principal's Guide to Leading the Transition From Policy to Real Enforcement in Grades 9–12
A research-based guide for high school principals on phone-free policy implementation. The October 2025 causal evidence, enforcement architecture, and what real implementation requires.
John Nguyen
10 hours ago16 min read
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