Problems with longitudinal lumbering

(Play narration by clicking above.)
IDevice Icon Complexity of data structures
  • Existing state databases are complex
  • Few researchers outside public agencies work with databases, because of the complexity of the structure

IDevice Icon Assumptions of accuracy
  • Multiple-identifier problems (e.g., when SSNs are used)
  • Underpaid-clerk problem
  • Underestimates cost of maintenance and accuracy (look to Social Security Administration for cost figures on database maintenance and upgrades: yes, theoretically it's possible to keep such a database secure and accurate, if you are willing to spend billions)

IDevice Icon Privacy concerns with unit records
  • Databases in K-12 forbidden by federal government for privacy reasons
  • Students fear being tracked
  • Recent reporting on federal government use of student databases (Krim, 2006)