** NOTE: This page is still under construction

Although some twins in the CTS participated in Learning Center projects prior to the CADD, the CADD represented the first large-scale project with the full “CTS” sample. The CTS went on to complete assessments as part of multiple other studies at IBG.

Some subsetted files are provided here for ease of access, but please see the Wiki pages for these other studies for more information.

You may need additional permissions to download these files. Please contact Daniel.Gustavson@Colorado.edu if you are having trouble.

• Age 17 CADD Wave 1 Assessments (SEE CADD center WIKI for more information)
  • CADD1 Substance Abuse Module (SAM) Summary Variables
  • CADD1 SAM Supplement
  • CADD1 Questionnaires

• Age ???? Executive Function Assessments (Contact Naomi Friedman. This project was led by Susan Young)

• Age ???? Sleep Survey (Contact Naomi Friedman?)

• Age 21 CADD Wave 2 Assessments (SEE CADD center WIKI for more information)
  • CADD2 Substance Abuse Module (SAM) Summary Variables
  • CADD2 SAM Supplement
  • CADD2 Diagnostic Interview Schedule (DIS)
  • CADD2 Questionnaires

• Age 27 CADD Wave 3 Assessments (SEE CADD center WIKI)
  • CADD3 Substance Abuse Module (SAM) Summary Variables
  • CADD3 SAM Supplement
  • CADD3 Diagnostic Interview Schedule (DIS)
  • CADD3 Questionnaires

• Age 35 COMN1 Assessments (SEE COMN WIKI)

• Age 41 COMN Paths / COMN2 Assessments (SEE COMN WIKI) - Data Collection Ongoing