The NCES released a technical brief entitled Statistical Methods for Protecting Personally Identifiable Information in Aggregate Reporting to help state and local officials protect student privacy through their statewide longitudinal data systems. The technical brief examines what protecting student privacy means in a reporting context. NCES concludes that even though aggregated data is reported to the public as opposed to individual data, unintended disclosures of personally identifiable information may still occur. The brief identifies best practices and provides recommendations. NCES also is soliciting comments on its recommendations. The brief can be found here.